Dictionary.com
Thesaurus.com
Synonyms

hilarious

American  
[hi-lair-ee-uhs, -lar-, hahy-] / hɪˈlɛər i əs, -ˈlær-, haɪ- /

adjective

  1. arousing great merriment; extremely funny.

    a hilarious story; a hilarious old movie.

  2. boisterously merry or cheerful.

    a hilarious celebration.

    Synonyms:
    high-spirited, rollicking, jolly, lively
    Antonyms:
    solemn, serious, sad
  3. merry; cheerful.


hilarious British  
/ hɪˈlɛərɪəs /

adjective

  1. very funny or merry

"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

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. Much less commonly, it used to mean very merry or cheerful, as in a hilarious celebration.Example: The movie was absolutely hilarious—I was laughing so hard at one point that I was crying.

Other Word Forms

  • hilariously adverb
  • hilariousness noun
  • hyperhilarious adjective
  • hyperhilariously adverb
  • hyperhilariousness noun
  • unhilarious adjective
  • unhilariously adverb
  • unhilariousness noun

Etymology

Origin of hilarious

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

I know that sounds like a desperate postmodern gambit, but it pays hilarious and chilling dividends by turning episodes previously recounted only in disputed legal proceedings into confrontational Brechtian theater.

From Salon

Carson’s amazing comedic monologues and silly antics gave viewers humor without being annoying, his off-the-cuff quips were hilarious, and interviews with interesting guests sparked laughter.

From The Wall Street Journal

"Obviously I give my own spin on things, I am always really inspired by Regina and Rachel McAdams' version of Regina, I just think she is extremely iconic and hilarious."

From BBC

The mother of Child E, who described her son as a "hilarious, cheeky, happy little boy," said his trust had been "manipulated and ultimately destroyed".

From BBC

It’s the second time Hernández has played the comedian, whose caricature of Maniscalco in a red blazer and black turtleneck is at turns spot on, exaggerated and completely hilarious.

From Los Angeles Times