UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/hɪˈlɛəriəs/

US:USA pronuncation: IPAUSA pronuncation: IPA/hɪˈlɛriəs, -ˈlær-/

US:USA pronunciation: respellingUSA pronunciation: respelling(hi lârē əs, -lar-, hī-)

WordReference Random House Learner's Dictionary of American English © 2020
hi•lar•i•ous /hɪˈlɛriəs, -ˈlær-/USA pronunciation   adj. 
  1. extremely funny:a hilarious joke.
hi•lar•i•ous•ly, adv. 

WordReference Random House Unabridged Dictionary of American English © 2020
hi•lar•i•ous  (hi lârē əs, -lar-, hī-),USA pronunciation adj. 
  1. arousing great merriment;
    extremely funny:a hilarious story; a hilarious old movie.
  2. boisterously merry or cheerful:a hilarious celebration.
  3. merry;
hi•lari•ous•ly, adv. 
hi•lari•ous•ness, n. 
  • Greek hilarós) + -ious
  • Latin hilar(is), hilar(us) cheerful (
  • 1815–25
    • 2.See corresponding entry in Unabridged lively, jolly, rollicking, high-spirited.
    • 2.See corresponding entry in Unabridged sad, serious, solemn.

Collins Concise English Dictionary © HarperCollins Publishers::
hilarious /hɪˈlɛərɪəs/ adj
  1. very funny or merry
Etymology: 19th Century: from Latin hilaris glad, from Greek hilaros

hiˈlariously adv hiˈlariousness n
'hilarious' also found in these entries:

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