Killjoy

//ˈkɪlˌd͡ʒɔɪ// noun

noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    A person who is anti-fun, or prevents others from having fun. derogatory

    "“If you mean me, sir, I call you and every one else to the inspection of my professional life. As to Christian or unchristian, I repudiate your canting palavering Christianity; and as to the way in which I spend my income, it is not my principle to maintain thieves and cheat offspring of their due inheritance in order to support religion and set myself up as a saintly Killjoy....”"

  2. 2
    someone who spoils the pleasure of others wordnet

Synonyms

All synonyms
party pooperspoilsportspoilsportbuzzkillbuzzkillcalamity howler

Example

More examples

"The girl is somewhat of a killjoy."

Etymology

From kill + joy, first attested in 1776.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.