The 14 Longest words in the english language.

sesquipedalianism.

If you possess this trait, you will enjoy trying to use the words in this article in your next conversation. If you are a true sesquipedalian, it shouldn't be too hard. Except, of course, for that 189,819-letter protein name . . . it's doubtful that your friends will wait three hours for you to finish saying it!

subdermatoglyphic.

It's seventeen letters, but you'll not have much opportunity to use it outside the realm of dermatology.

honorificabilitudinitatibus

a twenty-seven-letter way of saying "with honorableness.

Euouae

all of the letters are vowels. It holds two Guinness World Records. It's the longest English word composed exclusively of vowels, and it has the most consecutive vowels of any word. If you are wondering about its meaning, it's a musical term from medieval times.

Supercalifragilisticexpialidocious

extraordinarily good; wonderful.

Unimaginatively

has lots of vowels—eight in total, if you count the final y. What's neat about this word is that its vowels and consonants alternate. It's not the longest word with alternating consonants and vowels, though

tsktsk

indicate your disapproval by the tsktsk sound or by some other means. is the longest word that doesn't contain a vowel.

Pseudopseudohypoparathyroidism

is a mild form of inherited pseudohypoparathyroidism that simulates the symptoms of the disorder but isn't associated with abnormal levels of calcium and phosphorus in the blood.

Floccinaucinihilipilification

is the estimation of something as valueless. Ironically, floccinaucinihilipilification is a pretty valueless word itself; it's almost never used except as an example of a long word.

Sesquipedalian

long- words; long winded.

Antidisestablishmentarianism

originally described opposition to the disestablishment of the Church of England, but now it may refer to any opposition to withdrawing government support of a particular church or religion.

Pneumonoultramicroscopicsilicovolcanoconiosis

pneumoconiosis caused by inhalation of very fine silicate or quartz dust.

Incomprehensibilities

set the record in the 1990s as the longest word "in common usage." How many times have you used this twenty-one-letter term?

uncopyrightable

song, for example, would not be eligible for copyright. This word has fifteen letters