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.

Usage What does hilarious mean? 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.

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

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If something is hilarious, it is extremely funny and makes you laugh a lot. We thought it was hilarious when we first heard about it. He had a fund of hilarious tales on the subject.

Hilarious definition: Characterized by or causing great merriment.

  • arousing great merriment; extremely funny. 2. boisterously merry or cheerful: feeling hilarious from the champagne.
  • HILARIOUS definition: 1. extremely funny and causing a lot of laughter: 2. extremely funny and causing a lot of…. Learn more.

    Jan 17, 2026Β Β· Adjective hilarious (comparative more hilarious, superlative most hilarious) Very funny; causing great merriment and laughter. Synonyms: see Thesaurus: funny a hilarious joke Do you like …

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

    extremely funny: a hilarious story; a hilarious old movie. boisterously merry or cheerful: a hilarious celebration. cheerful. hiβ€’larβ€²iβ€’ousβ€’ness, n. 2. lively, jolly, rollicking, high-spirited. 2. sad, serious, …

    Jan 17, 2026Β Β· Adjective hilarious (comparative more hilarious, superlative most hilarious) Very funny; causing great merriment and laughter. Synonyms: see Thesaurus: funny a hilarious joke Do you like …

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

    extremely funny: a hilarious story; a hilarious old movie. boisterously merry or cheerful: a hilarious celebration. cheerful. hiβ€’larβ€²iβ€’ousβ€’ness, n. 2. lively, jolly, rollicking, high-spirited. 2. sad, serious, …

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