10 Most Longest Words in World

10. Psychophysiologically (21 letters)

Image Credit: Google

9. Thyroparathyroidectomized (25 letters)

Image Credit: Google

8. Ethylenediaminetetraacetate (27 letters)

Image Credit: Google

7. Honorificabilitudinitatibus (27 letters)

Image Credit: Google

6.  Antidisestablishmentarianism (28 letters)

Image Credit: Google

5.  Floccinaucinihilipilification  (29 letters)

Image Credit: Google

4. Pseudopseudohypoparathyroidism  (30 letters)

Image Credit: Google

3.  Supercalifragilisticexpialidocious  (34 letters)

Image Credit: Google

2. Hippopotomonstrosesquippedaliophobia  (36 letters)

Image Credit: Google

1. Pneumonoultramicroscopicsilicovolcanoconiosis  (45 letters)

Image Credit: Google