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.

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

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  • arousing great merriment; extremely funny. 2. boisterously merry or cheerful: feeling hilarious from the champagne.
  • Jan 17, 2026 · 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 …

    extremely funny: a hilarious story; a hilarious old movie. boisterously merry or cheerful: a hilarious celebration. cheerful. hi•lar′i•ous•ness, n. 2. lively, jolly, rollicking, high-spirited. 2. sad, serious, …

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

    Hilarious definition: Characterized by or causing great merriment.

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

    Hilarious definition: Characterized by or causing great merriment.

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

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