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Hardest Words to Pronounce in English: Full List

    Cartoon children study a long word card, showing the hardest words to pronounce in English one syllable at a time.

    The hardest words to pronounce in English are the ones whose spelling hides their sound, such as colonel, squirrel and queue. Silent letters, borrowed spellings and heavy consonant clusters all make a written word harder to say than it looks. This guide explains why each word trips speakers and shows how to practise the difficult sounds.

    Hardest words to pronounce in English at a glance

    • Silent letters mislead the eye, as in Wednesday, asthma and queue.
    • Borrowed words keep a foreign sound that English spelling cannot show.
    • Consonant clusters such as str in strength demand quick tongue movement.
    • R sounds in squirrel and rural repeat in a way many learners find hard.
    • The commonest mistake is trusting the spelling instead of the sound.

    What are the hardest words to pronounce in English?

    A hard word is one whose letters do not match the sounds a speaker must produce. Colonel has no relation between its spelling and its sound, while queue keeps four silent letters. The list below gathers the words that learners and native speakers most often name, with the feature that makes each one difficult; more example frames appear in pronounce in a sentence.

    Word Why it is hard Feature
    colonel the spelling suggests three sounds it does not have borrowed spelling
    queue four letters are silent, leaving one sound silent letters
    Wednesday the first d is not said silent letter
    asthma the th is not sounded silent letters
    squirrel two r sounds bookend a hard skw consonant cluster
    rural two r sounds sit close together repeated r
    sixth three consonants end the word final cluster
    strength four consonants run together final cluster
    genre the first sound is not g in English borrowed sound
    Worcestershire the spelling hides three syllables silent letters
    thoroughly two different th sounds in one word th contrast
    choir the ch is said as a k sound borrowed spelling

    Why are English words hard to pronounce?

    English spelling grew from several languages, so the same letters can stand for different sounds and some letters are not spoken at all. A learner who reads a word letter by letter is therefore led astray, while a learner who hears it first often finds the word easy. The table groups the reasons and gives one fix for each.

    Reason Example words What to do
    Silent letters queue, asthma, Wednesday learn the spoken form, not the letters
    Borrowed spelling colonel, choir, genre treat the word as a single sound unit
    Consonant clusters sixth, strength, texts say the cluster slowly, then speed up
    Repeated r squirrel, rural, error pause between the r sounds at first
    Two th sounds thoroughly, breathe, breath feel the difference between the two th sounds
    Stress shift photograph, photography learn the stress of each form

    One more feature makes a word hard to say: the reduced vowel, the soft uh sound that unstressed syllables take in English. In comfortable and vegetable the spelling suggests more syllables than the speaker pronounces, because the weak vowels disappear. Learners who say every written vowel separately sound over-careful, so matching the reduced form is part of sounding natural.

    Cartoon children split a long word into three syllable cards on a table.
    Breaking a hard word into syllables makes it easier to say.

    Hardest words to pronounce in English: examples across contexts

    These words appear in weather reports, place names, science lessons and everyday chat, so a learner meets them outside the classroom. Each sentence below shows a difficult word in a real line, and more example frames sit in hardest words in sentences.

    Context Sentence Hard word
    Weather report The storm brought thoroughly wet weather. thoroughly
    Science lesson She checked her asthma inhaler first. asthma
    Place name They drove through Worcestershire. Worcestershire
    Calendar The meeting is on Wednesday morning. Wednesday
    Music class The choir sang a new anthem. choir
    Book chat Her favourite genre is mystery. genre
    Army story The colonel gave the order. colonel
    Town trip We joined the queue at the bakery. queue
    Sports report He cleared the final sixth hurdle. sixth
    Nature walk A squirrel ran along the fence. squirrel

    Which words are hardest for learners?

    Some words are hard for everyone, while others are hard for speakers of particular languages. A cluster at the end of a word troubles learners whose first language does not allow it, and a repeated r troubles many others. Some speakers add a vowel between two consonants, while others soften a final cluster, so the same word fails for different reasons. The table pairs each word with the challenge it poses.

    Word Main challenge Tip
    squirrel skw plus two r sounds say skwir first, then add the second syllable
    rural two r sounds side by side pause between them, then join
    strength four consonants at the end practise ngth as a unit
    sixth three consonants at the end say six, then add th
    niche two accepted pronunciations choose one and keep it
    genre a sound not used at the start of English words model it on the middle of measure

    Word forms and stress shifts

    Stress can move when a word changes form, and the move is what makes some pairs hard to say. A learner who stresses the wrong syllable sounds foreign even when every sound is correct. The table shows the common shifts.

    Base word Related form Stress
    photograph photography first syllable, then second
    economy economic second syllable, then third
    comfort comfortable the long word loses a syllable in speech
    pronounce pronunciation the vowel changes with the form
    able ability the vowel shifts and stress moves

    Common mistakes with hard words

    Mistake 1: sounding every letter. Incorrect: Wed-nes-day for Wednesday. Correct: say it as two syllables, WENZ-day. Rule: some letters are silent, so follow the spoken form.

    Mistake 2: reading colonel letter by letter. Incorrect: kol-oh-nel. Correct: say it as KER-nuhl. Rule: a borrowed spelling can hide the sound completely.

    Mistake 3: splitting a cluster with a vowel. Incorrect: si-kist for sixth. Correct: say six, then add a light th. Rule: an extra vowel changes the word.

    Mistake 4: stressing the wrong syllable. Incorrect: PHO-to-graph-y for photography. Correct: pho-TOG-ra-phy, with the stress on the second syllable. Rule: the stress moves when photograph becomes photography, so learn each form separately.

    Mistake 5: forcing one pronunciation of niche. Incorrect: insisting that neesh is the only correct form. Correct: both NEESH and NICH are used. Rule: some words have more than one accepted pronunciation.

    Practice pronouncing hard words

    1. Count the syllables: thoroughly, comfortable, pronun- ciation.
    2. Find the silent letter: asthma, queue, Wednesday.
    3. Correct the error: say Wed-nes-day for Wednesday.
    4. Build a sentence: use squirrel and rural in one line.
    5. Choose the better habit: learn a hard word from its spelling, or from its sound?
    6. Spot the cluster: which word ends with three consonants, texts or houses?

    Answers

    1. thoroughly has three syllables, comfortable three in speech, and pronunciation five.
    2. the th in asthma, the silent letters in queue, and the first d in Wednesday.
    3. Say WENZ-day; the first d is silent and the word has two syllables.
    4. Sample: A squirrel ran across the rural road; both words repeat the r sound.
    5. From its sound; the spelling of a hard word often misleads.
    6. texts; it ends with three consonants, while houses ends with a vowel sound and z.

    For more frames that place hard words in real lines, see practise hard words in sentences.

    A cartoon teacher shows a child the difference between two th sounds at a mirror.
    Feeling the difference between two th sounds helps with words such as thoroughly.

    The bottom line

    The hardest words to pronounce in English are rarely the longest, but the ones whose spelling hides their sound, such as colonel, queue and squirrel. Learn each word by ear, split its clusters into smaller units, and check where the stress falls. Practising the difficult sounds on purpose turns these words from stumbling blocks into ordinary vocabulary.

    Frequently asked questions about hard words

    What is the hardest English word to pronounce?

    There is no single hardest word, because difficulty depends on a speaker’s first language, but sixth, squirrel and rural are often named. Words with heavy consonant clusters or repeated r sounds cause the most trouble. A long borrowed word such as Worcestershire is also widely listed.

    Why are some English words so hard to pronounce?

    English spelling comes from several languages, so letters and sounds do not match neatly. Silent letters, borrowed spellings and clusters all make a word look different from how it sounds. A word learned by reading first is therefore harder than one heard first.

    How can I improve my English pronunciation?

    Listen to the word before reading it, and copy the spoken form rather than the spelling. Break long words into syllables, practise the hard cluster slowly, then speed up. Recording yourself and comparing with a model helps, and repeating the word in a full sentence fixes the rhythm.

    Do all native speakers pronounce these words the same way?

    No. Accents differ by region, and some words have more than one accepted form, as with niche. Speakers in Britain, America and Australia may stress or shape a word differently, so a learner should pick one clear version and use it consistently.

    Written & edited by

    Founder & Editor, StartsWithy

    Robin founded StartsWithy in 2022 to make English words easier to understand and use. Robin oversees our 30,000+ guides, checks meanings and grammar against trusted dictionaries such as Cambridge, Oxford Learner’s and Collins, and is accountable for every correction we make.