Dictionary.com

hilarious

[ hi-lair-ee-uhs, -lar-, hahy- ]
/ hɪˈlɛər i əs, -ˈlær-, haɪ- /
See synonyms for: hilarious / hilariously / hilariousness on Thesaurus.com

adjective

arousing great merriment; extremely funny: a hilarious story; a hilarious old movie.
boisterously merry or cheerful: a hilarious celebration.
merry; cheerful.

QUIZZES

LEARN THE SPANISH WORDS FOR THESE COMMON ANIMALS!

Are you learning Spanish? Or do you just have an interest in foreign languages? Either way, this quiz on Spanish words for animals is for you.
Question 1 of 13
How do you say “cat” 🐈 in Spanish?
gato/gata
cato/cata
gatto/gatta
TAKE THE QUIZ TO FIND OUT

Origin of hilarious

1815–25; <Latin hilar(is), hilar(us) cheerful (<Greek hilarós) + -ious

OTHER WORDS FROM hilarious

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Words related to hilarious

uproarious, humorous, lively, priceless, amusing, entertaining, laughable, comical, convivial, exhilarated, frolicsome, gay, gleeful, happy, jocular, jolly, jovial, joyful, joyous, merry

Example sentences from the Web for hilarious

British Dictionary definitions for hilarious

hilarious
/ (hɪˈlɛərɪəs) /

adjective

very funny or merry

Derived forms of hilarious

hilariously, adverbhilariousness, noun

Word Origin for hilarious

C19: from Latin hilaris glad, from Greek hilaros
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012