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List of 100+ Difficult Words in English Vocabulary from A to Z.

Last updated: Jul 28, 2025

You must’ve thought what makes an English word “difficult”? Is it a baffling spelling, tricky pronunciation or a subtle, shifting meaning that changes with the context? If yes, then you will find numerous difficult words in English. This language is full of these types of charmingly infuriating examples that tangled your tongue, and the word comes out wrong. Instead of running from them, conquering them can actually help you become a confident English speaker. So get ready to expand your vocabulary as we are going to dive into the world of those difficult English words with meaning and pronunciation through this blog. So buckle up and get ready to explore.

Discover 100+ Z Difficult Words in English with its Meaning and pronunciation with Gradding.com.

Table of Contents

Challenging English Words Starting from A to Z with Meanings

Whether you are a student preparing for any exam or a lifelong learner, a strong vocabulary can be an irreplaceable asset for you. English is a language rich with hard vocabulary words that are difficult to understand, but in depth, their meaning is related to every action. Thus, this A to Z guide takes you on a journey through some of the most difficult words used in daily conversation, defining their meaning and offering their context. You will also explore its pronunciation along with difficult words in English from the A to Z alphabet letters. So let’s check them out. 

Difficult Words in English

 

Pronunciation

 

Meanings

 A

Amorphous

Uh-MOR-fuhs

Having no definite form, shape or structure

Assiduous

Uh-SID-yoo-us

Work hard and take great care, or make persistent effort, so that everything is done well

 Archetypal

Ark-i-TAHY-puhl

An original pattern on which other people live or become like.

Acumen

AK-yuh-mun

A skill to make quick decisions or good judgment

Arbitrary

Ar-bit-ruh-ree

Based on or subject to any person's preference and discretion.

B

Bane

Buh·nay

Something causes misery, trouble or makes someone unhappy

 Bereft

Beuh-reft

Lacking or deprived of something

Balatron

Bal-uh-tron,

One who speaks a lot of nonsense and is known for self-indulgence

Bombilate

BOM-bi-layt

To make a buzzing sound

Beseech

Buh-seech

Ask someone to do something frequently and urgently

 C

Cajole

Kuh-JOHL

To persuade someone to do something by sustained coaxing or flattery

Chauvinist

SHOH"-vuh-nist

A person with a prejudiced belief in their own company

Countenance

Kown-tuh-nuhns

A facial expression of someone

Congruity

Kuhn-GROO-it-ee

The quality of agreeing with someone or being suitable

Circumvent

Sur-kuhm-VENT

To find a clever or smart way of avoiding a difficulty or a rule, or force one to give up

D

Demagogue

DEM-uh-gog

A leader who seeks support by appealing to the desire or popular passion

 Diaphanous

dye-AFF-uh-nus

Something so thin to transmit light or delicate

 Duress

dyoo·res

Compulsory threat or force

Diabolical

dee-uh-BOL-i-kul

Disgracefully bad or unpleasant, characteristic of the devil

Discrepancy

dih-SKREP-uhn-see

A lack of similarity among two or more facts

E

Ebullient

i-BUL-ee-uhnt

Joyously uncontrolled or full of energy or confidence

Egregious

uh·gree·juhs

Noticeably and outrageously bad or reprehensible

Embezzlement

im-BEZ-uhl-muhnt

The fake appropriation of funds or property

 Emollient

"ih-MOL-ee-unt"

A preparation or substance with a soothing effect when applied to the skin

 Evanescent

ih-van-ESS-unt

Short-lived; tending to disappear or vanish

F

Fatuous

FACH-uh-wuhs

Devoid of intelligence or silly and pointless.

 Forbearance

fawr-BAIR-uhns

Good-natured tolerance of incompetence or delay

 Fractious

FRAK-shus

Easily annoyed or irritated

Fallacious

fuh-lay-shuhs

Containing or based on incorrect reasoning

Fidelity

fi-DEL-uh-tee

Faithfulness to a person

G

Garrulous

ga-ruh-luhs

Full of inconsequential conversation, talking a lot, mostly about insignificant things

Grandiloquent

gran-DIL-uh-kwuhnt

Lofty in style, using long, complex or formal words to amaze people

Gourmand

gur-MAHND

A person who is devoted to drinking and eating to excess

Gambit

GAM-bit

Typically, one involving a degree of risk, which is calculated to gain an advantage

Gallant

guh-LANT

A brave person

H

Harbinger

HAR-bin-jer

A person or thing that announces or signals the approach of another

Hegemony

"he-GEM-uh-nee"

Dominance or leadership, especially by one country or social group over others

Hapless

hap·luhs

Unfortunate and deserving pity

Haughty

Haughty

Arrogantly disdainful and superior

Havoc

HAV-uhk

Extensive destruction or a state in which there is a lot of injury, damage or confusion

I

Idiosyncracy

id-ee-uh-SIN-kruh-see

A manner of behaviour or way of thought that is strange to an individual

Imbibe

im-BYB

Integrate some ideas or knowledge

 Impecunious

im-puh-KYOO-nee-uhss

Not having sufficient money to pay for necessities

Interlocutor

in-tuh-law-kyoo-tuh

A person who takes part in a conversation

Inexorable

in-EX-uh-ruh-bull

Impossible to prevent, resist, or stop someone

J

Jargon

jar-gun

Special words or expressions that are used by a particular group and are difficult for others to understand

Juxtapose

JUK-stuh-POHZ

Place or deal with close together for a contrasting effect

Juncture

JUNK-cher

A particular point in events or time

Jovial

joh-vee-uhl

Someone who is cheerful and friendly

Juvenescence

JOO-vuh-NES-uhns

The state of being youthful

K

Kalopsia

ka-LOP-see-uh

The state in which everyone and everything looks beautiful

Kleptomania

klep-tuh-MAY-nee-uh

A recurrent impulse to steal, especially without regard for need or profit

 Knell

nell

The sound of a bell rang slowly to announce a death

Kudos

KYOO-doss

Honour and praise received for an achievement

Knight

nite

A man who served his sovereign or noble as a mounted soldier in armour

L

Labyrinth

LAB-uh-rinth

A complex, irregular network of channels or paths in which it is challenging to find one’s way or a maze.

Lampoon

lam-poon

Publicly criticise by using mockery, sarcasm, or irony.

Legerdemain

LEJ-er-duh-main

Skilful use of one's hands when performing magic tricks.

 Linchpin

LINCH-pin

A central unified source of stability and support.

Lacuna

luh-KYOO-nuh

An unfilled space or interval; a gap, particularly in any other piece of writing or book.

M

Macrocosm

mak-roh-koz-uhm

The whole of a multifaceted structure that contains smaller parts, for example, the universe

Mawkish

MAWK-ish

A person who is very emotional or sentimental

Mores

MOR-ays

The conventions exemplifying the important values of a group

Maelstrom

MAY-l-strom

An influential spherical current of water

Malapropism

MAL-uh-prah-piz-uhm

The incorrect use of a word in place of a similar-sounding one

N

Narcissist

NAR-suh-sist

An individual who has an extreme interest in or admiration for themselves

Neophyte

NEE-uh-fyt

A person who is new to a subject, skill, or belief

Nomenclature

no-men-kley-cher

The choosing or devising of names for things, particularly in a science or other program

Neophyte

NEE-uh-fyt"

A candidate with no experience with an activity or an individual who is new to a subject, role or any activity.

Nullify

NUL-uh-fy.

To make it ineffective, invalid, or of no consequence, either legally or non-legally

O

Omen

oh·muhn

An event regarded as a portent of good or evil, or  a sign of something that will happen in the future

Oblivion

uh-BLIV-ee-uhn

The state of being unconscious or unaware of what is occurring.

Obstreperous

uhb-STREP-uh-ruhs

Noisily and obstinately disobedient, or difficult to control.

Ostensible

oss-TEN-suh-buhl

Appearing as such, but not necessarily

Ostracism

OSS-truh-siz-uhm

The act of eliminating someone from society by general accord

P

 Pejorative

puh-JOR-uh-tiv

Expressing condemnation or criticism

Pertinacious

per-tih-NAY-shus

Holding resolutely to an opinion or a course of action. Or obstinately unyielding

Philanthropic

fill-an-THROP-ik

The attempt to help others, particularly those in need, over substantial giving of money, time, or effort

Preponderance

pru-PON-duh-ruhns

One type of thing or people in a group, there are more of them than others or exceeding in heaviness

Punctilious

punk-TIL-ee-us

Marked by accurate agreement with details

Q

Quaint

kwaynt

Pleasingly antiquated old-fashioned

Quixotic

kwiks-OTT-ick"

Not aware of practical matters

Quandary

KWON-duh-ree

Situation of uncertainty in an option among unfavourable choices

Quibble

KWIB-uhl

A small objection or disapproval about a matter of slight value

Quintessence

kwin-TES-uhns

The most precise or typical instance of a quality or class

R

Reconnaissance

reh-KON-uh-suns

Check out a situation or an area before taking any action. Typically used in the military

Rejuvenate

ree-JOO-vuh-nayt

To make someone feel young and energetic

Recalcitrant

ruh-KAL-suh-truhnt

Stubbornly resistant/ refuse to follow any rules/ not easy to control.

Rescind

ri-SIND

Officially cancel any law or agreement, making it no longer valid.

Remorse

ri-MAWRSS

Regretting making wrong commitments

S

Sagacious

suh-GAY-shuhs

Having or expressing good judgement and understanding, or keen mental discernment

Sanctimonious

sank-tuh-MOH-nee-us

Someone who acts better and has more morals than others, or  hypocritically pious

 Scurrilous

skuh-ruh-luhs

Making or spreading shocking or wrong claims about someone with the intention of damaging their reputation

 Swarthy

SWOR-thee

Someone who has dark skin colour

Serendipity

ser-en-dip-i-ty

The fact of finding something interesting or valuable by accident, or something fortunate or unexpected discovered

T

Truculent

TRUK-yuh-luhnt

Aggressive or quick to oppose or argue

Travesty

TRAV-uh-stee

Something that does not have those qualities that it should have, in a way that is often offensive or shocking.

Toady

toh-dee

A person who tries to make someone impress to gain an advantage.

Tantamount

tan-tuh-mount

Being almost similar to or having the same effect as something.

 Trite

tryt

Repeated too often or a thing that is expressed too many times.

U

Ubiquitous

yoo-BIK-wih-tuhs

Being present everywhere at the one time

Utilitarian

yoo-til-uh-tair-ee-uhn

Designed to be useful and practical rather than attractive

Upbraid

uhp-brayd

Finding fault with someone or expressing criticism

Upheaval

up-HEE-vuhl

A sudden disruption or change to someone

Utopian

yoo-TOH-pee-un

A state in which everything seems perfect: idealistic

V

Vengeance

VEN-juhns

Punishment, retribution, or inflicted excated for a wrong thing or injury.

Valour

VAL-er

Having great courage or showing bravery in the face of danger

 Vicissitude

vi-SIS-i-tood

A variation in fortune or circumstances in an individual's life

 Vilify

VIL-uh-fye

Spreading or writing negative information about something or someone to other people to create a bad opinion of them.

Vitriolic

vit-ree-OL-ic

Full of anger and hatred

W

Wayfarer

WAY-fair-er

A person who travels to places on foot.

Whimsical

WIM-zi-kuhl

Playful, fanciful and quaint

Wrangle

RAN-guhl

to argue with someone in a noisy or angry way

Winsome

WIN-suhm

Charming or appealing in a pleasing way

Wanton

WAHN-tn"

A immoral perosn

X

Xenon

ZEN-on

A gas that is used mostly in electric lamps

Xenophobia

zen-uh-FOH-bee-uh

A hatred or fear of foreign people and their culture.

Xylography

zy-LOG-ruh-fee

The art or skill of engraving on wood.

Xerophile

ZEER-uh-fighl

A plant adapted that grow in low water availability

Xeric

ZEER-ik

Being deficient in or a thing containing little moisture.

Y

Yatter

YAT-er

Endless talks or chattering

Yank

yang-k

To pull something quickly, suddenly, or with a jerk

Yoke

yohk

A wooden bar used to tie across the neck of an animal to pull heavy loads

Yonder

Yawn-der

At some distance

Yelp

Yelp

To cry suddenly with pain

Z

Zephyr

ZEF-er

A soft, gentle wind

Zeal

zeel

Great enthusiasm or energy

Zealous

zeh-luhs

Same as zeal

Zenith

ZEE-nith

The highest point of something

Zealot

zeh-uht

A person who has a strong belief, especially in politics and religion

Tips to Learn Tough English Words

In a group of people, when your tongue gets twisted and you speak the wrong word, it can feel embarrassing. It is those daily use English words that become slippery term that keeps you on linguistic toes. This can be overcome by doing regular practice using strategies and tips that can help you learn tricky English words. Here are some powerful tips and tricks you must use to learn difficult words in English to improve your vocabulary.

1. Use the “write it down” method, as writing down the word along with the sentences can help you recall the word. 

2. Use mnemonic devices, such as linking a difficult word to a memorable thing, to create a strong memory link.

3. Create a flashcard for new words, and you can add sentences behind it for more context and quick recall. 

4. Avoid memorising the words in isolation, rather than learn them as part of sentences

5. Read books, newspapers, or other materials that consist of difficult words in English to improve vocabulary.

6. Keep a book with you to jot down the words and look them up later, just like keeping a vocabulary journal

7. Don’t just learn words, use them in your daily conversation, which helps to improve the pronunciation as well. 

8. Engage in games like online vocabulary puzzles and Scrabble.

9. Lastly, practice is the key to improving vocabulary, so practice regularly.

Conclusion

To wrap up, we have successfully addressed almost all the difficult words in English from A to Z with their meaning and pronunciation. It can be a hectic and stimulating task for an individual to learn English and new vocabulary words, and also use them in every conversation. But the result is being awarded as one becomes a proficient English speaker and has a robust vocabulary journal. Thus, if you want to learn more Complex English Words that can improve your pronunciation skills, then connect with our expert at Gradding.com. They will help you improve your fluency skills by providing a list of difficult English words.

FAQs

1. Where are difficult English words frequently used in exams or school tests?

Difficult English words are frequently used in various exams and school tests, such as reading comprehension passages, vocabulary sections, grammar questions, and essay writing. Also, it is used in competitive exams like the IELTS and SAT, and many more standardised tests, and in general assessments at schools. This helps to advance the language skills and improve the vocabulary of the candidates.

2. What are the shortest and longest Difficult Words in English?

The shortest difficult word in English is “Euouae” (you-oo-ee), which is a musical mnemonic used in Georgian chant. This letter is entirely of vowels and is considered the most difficult short English word to pronounce. On the other hand, “ Pneumonoultramicroscopicsilicovolcanoconiosis” is the largest difficult English word of 45 letters. It refers to a lung disease caused by inhaling fine silica dust. Also, it is very challenging to pronounce this word and is considered the longest word found in the standard English dictionary.

3. What are some difficult words to spell with silent letters?

There are many difficult English words to spell with silent letters, such as Chthonic, Apropos, Gnaw, Faux, Mnemonic, Subtle, and Phlegm.

4. What Are the 10 Most Commonly Misused Words?

  1. Effect
  2. Lose versus loose
  3. Principal versus principle
  4. Adverse and averse
  5. Insure versus ensure
  6. There versus their
  7. Should've/would've/could've
  8. Desert vs. Dessert
  9. Than vs then
  10. Accept/ Except/Aspect/ Expect

5. What Is the Rarest Word Used?

Pneumonoultramicroscopicsilicovolcanoconiosis

Meaning: A type of lung disease caused by inhaling fine silica dust, often found in mines.

Why it's rare: Although it's one of the longest words in the dictionary, it's not commonly used outside medical contexts.

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