List of the 10 longest words in the English language

Here is a list of the 10 longest words in the English language:

1. pneumonoultramicroscopicsilicovolcanoconiosis (45 characters)
2. floccinaucinihilipilification (29 characters)
3. antidisestablishmentarianism (28 characters)
4. ultracrepidarianism (25 characters)
5. floccipaucinihilipilification (25 characters)
6. circumlocution (25 characters)
7. pseudopseudohypoparathyroidism (24 characters)
8. antidisestablishmentarianist (23 characters)
9. uncopyrightable (21 characters)
10. antiantidisestablishmentarianism (21 characters)

These words are all very rare, and you are unlikely to ever need to use them in everyday conversation. However, they are a fun fact to know.