HILARIOUS definition: 1. extremely funny and causing a lot of laughter: 2. extremely funny and causing a lot of…. Learn more.

The meaning of HILARIOUS is marked by or causing hilarity : extremely funny. How to use hilarious in a sentence.

Hilarious means extremely funny, like literally funny. Hilarious is most commonly used to describe someone or something (like a joke or a movie) as super funny.

1. arousing great merriment; extremely funny. 2. boisterously merry or cheerful: feeling hilarious from the champagne.

Definition of hilarious adjective from the Oxford Advanced Learner's Dictionary. extremely funny. Lynn found the whole situation hilarious. Do you know Pete? He's hilarious.

Factsheet What does the adjective hilarious mean? There are three meanings listed in OED's entry for the adjective hilarious. See ‘Meaning & use’ for definitions, usage, and quotation …

4 days ago · hilarious (comparative more hilarious, superlative most hilarious) Very funny; causing great merriment and laughter. synonym Synonyms: see Thesaurus: funny a hilarious joke Do …

hi•lar•i•ous•ly, adv. WordReference Random House Unabridged Dictionary of American English © 2025 hi•lar•i•ous (hi lâr′ ē əs, -lar′ -, hī-), adj. arousing great merriment; extremely funny: a …

hilarious meaning, definition, what is hilarious: extremely funny: Learn more.

Synonyms for HILARIOUS: funny, humorous, comedic, amusing, comical, ridiculous, comic, hysterical; Antonyms of HILARIOUS: lame, unfunny, serious, humorless, earnest, solemn, …