Longest Words in English Quiz

Estimated Completion Time
2 min
Longest Words in English Quiz
Image: Ajaykampani/Getty Images

About This Quiz

These words will curl your corneas and tie up your tongue. How much do you know about the longest English words?
How many letters are in the longest English word that you'll see in a normal dictionary?
45 letters
There are longer words, but people argue about whether they count if they don't appear in a dictionary that most people would use.
62 letters
71 letters

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What is this word we mentioned in the previous question?
pneumonoultramicroscopicsilicovolcanoconiosis
Pneumonoultramicroscopicsilicovolcanoconiosis is 45 letters long and refers to a lung disease.
hippopotomonstrosesquipedaliophobia
supercalifragilisticexpialidocious

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If you declare yourself antitransubstantiationalist, you may find yourself at odds with who?
your lawyer
your priest
It means you don't believe that the bread and wine offered during communion are actually the blood and flesh of Christ.
your doctor

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What causes pneumonoultramicroscopicsilicovolcanoconiosis?
volcanic ash
It's a lung disease caused by inhaling fine silica particles from dust or volcanic ash.
smoking
pollution

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What is "methylchloroisothiazolinone"?
an artificial color
an acid
a preservative
It has antibacterial and antifungal characteristics, but it also causes allergic reactions in some people

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What's the meaning of "antidisestablishmentarianism"?
religious rebellion
If you turn away from an established church, you might be labeled with this word.
anti-slavery literature
freedom from love

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In which movie did the word "supercalifragilisticexpialidocious" appear?
"Mary Poppins"
Poppins even goes so far as to sing the word backwards.
"Mad Max"
"Hitchhiker's Guide to the Galaxy"

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How many letters are in "antidisestablishmentarianism"?
28
Compared to some others in our list, it's a baby.
30
32

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What did the Guinness Book of World records have to say about "incomprehensibilities"?
It was the oldest long word.
It was the longest word you'd actually use.
It is 21 letters long.
It's not a real word.

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What does "floccinauccinihilipilification" mean?
toothy
hairy
worthless
It refers to something that doesn't have much value.

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What is "anhydrohydroxyprogesterone"?
a universal hormone
a male sex hormone
a female sex hormone
It can be administered orally to combat progesterone deficiency.

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About how long did it take one man to pronounce the name of the largest protein?
about 30 minutes
about 90 minutes
over 3 hours
It took 3.5 hours. But people debate whether this a real word or just a chemical construction.

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How many letters are there in the word that took over three hours to properly pronounce?
nearly 620,000 letters
nearly 189,000 letters
It has 189,819 letters. There's a YouTube video of a man speaking the word, and yes, it's boring.
nearly 34,000 letters

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What's special about the word "abstentious"?
It uses every vowel only once.
It means "one who abstains from excess."
It is one of first long words in the dictionary.
it is totally made up.

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Para-Dimethylaminobenzaldehyde is a chemical that might be used to test what?
hair
blood
urine
It can be used to detect byproducts made by bacteria in the intestines.

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What sort of creature is "parastratiosphecomyia sphecomyioides"?
fly
It's a soldier fly that typically lives less than a week.
caterpillar
worm

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How many letters are there in "supercalifragilisticexpialidocious"?
35
It's a nonsense word but it might be used to describe something that's exciting or good.
32
30

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To what does "hippopotomonstrosesquipedalian" refer?
long words
And at 30 letters, it is very appropriate for our quiz
the irony of the Hippocratic oath
a disease found in hippos

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How is "ethylenediaminetetraacetic" abbreviated?
EDTC
ELTC
EDTA
This 26-letter word refers to a type of salt that's very useful in medicine.

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"Hepaticocholangiocholecystenterostomies" refers to what?
a surgical procedure
It refers to a surgically created connection between a hepatic duct and the gall bladder.
a vestigial organ
an eye problem

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If you suffer from "pseudopseudohypoparathyroidism", you may not have enough of what mineral in your body?
aluminum
calcium
The condition is very rare and only affects about seven people in 1 million.
iron

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Dichlorodiphenyltrichloroethane is very damaging to what kind of wildlife?
fish
amphibians
birds
Popularly known as DDT, it thins eggshells and can cause bird populations to nosedive.

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How many letters are there in "dichlorodiphenyltrichloroethane"?
27
31
It's a pesticide and it was banned in 1972, an act that helped bald eagles recover in numbers.
34

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Which writer used the word "honorificabilitudinitatibus"?
Lord Tennyson
William Shakespeare
He used the laborious word in a play called "Love's Labour's Lost"
William Blake

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How many letters are there in "pseudopseudohypoparathyroidism"?
26
28
30
If you have it, it means you have a hormonal disorder.

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What does "honorificabilitudinitatibus" mean?
loss of virtue
honorableness
Its 27 letters are also an homage to lengthiness.
no one knows

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What does "aequeosalinocalcalinoceraceoaluminoscupreovitriolic" describe?
composition of water
This one is extremely long but you won't find it in a consumer dictionary.
composition of sewage
composition of lard

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How many letters are in "aequeosalinocalcalinoceraceoaluminoscupreovitriolic"?
47
51
Because this one is a medical term, it might be thrown out in a longest-word contest.
58

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What's the meaning of "asseocarnisanguineoviscericartilaginonervomedullary"?
It references the structure of the human body as a whole.
It's an informal (but very long) word for the human body.
It describes the mating behaviors of Arctic mammals.
It doesn't mean anything.

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How many letters are there in "asseocarnisanguineoviscericartilaginonervomedullary"?
51
If it appeared in a regular dictionary it would be the longest English word.
50
49

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You Got:
/30
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