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2025-07-24 00:04:51

TOP-10 longest words in English

TOP-10 longest words in English

How many words are there in English ? The second edition of the 20-volume Oxford English Dictionary contains 171,476 words that are used in everyday life. What's the longest word in the English language? Let's find out in our TOP-10.

Strengths

  • Number of letters: 9.

The quality or state of strength, the ability to exert tension or endurance. The ability to resist force or attack.

Sesquipedalianism

  • Number of letters: 17.

This term indicates verbosity.

Incomprehensibilities

  • Number of letters: 21.

In the 1990s, this word was a very popular long word in everyday English speaking.

Antiestablishmentarian

  • Number of letters: 22.

Opponent or hostile to the social, economic and political principles of the ruling class (as a nation), against the establishment.

Thyroparathyroidectomized

  • Number of letters: 25.

Medical term for the removal of the thyroid and parathyroid glands.

Honorificabilitudinitatibus (honorific)

  • Number of letters: 27.

A word used in the works of Shakespeare.

Floccinaucinihilipilification

  • Number of letters: 29.

The act or habit of describing, considering something as unimportant, of no value, or useless. Often used in the comedy genre.

Pseudopseudohypoparathyroidism (pseudopseudohypoparathyroidism)

  • Number of letters: 30.

An indicator of the level of calcium and phosphorus in the blood.

Supercalifragilisticexpialidocious (supercalifragilistic)

  • Number of letters: 34.

Perhaps the best word of all! Popularized by the Mary Poppins movie Supercalifragilisticexpialidocious is something to say when you have nothing to say.

Pneumonoultramicroscopicsilicovolcanoconiosis

  • Number of letters: 45.

A disease caused by pneumoconiosis bacteria entering the upper respiratory tract.

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