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

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

Hilarious means extremely funny, like literally lol 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.

Nov 6, 2025 · hilarious (comparative more hilarious, superlative most hilarious) Very funny; causing great merriment and laughter. synonym Synonyms: see Thesaurus: funny a hilarious …

Mar 3, 2025 · Master the word "HILARIOUS" in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource.

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 …

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

Find Hilarious GIFs that make your conversations more positive, more expressive, and more you.

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.