Synonyms|88Antonyms|39|Broader|3Narrower|4Related|236
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freeze-out
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fussbudget
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hardtack
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holdout
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hothead
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loser
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moaner(noun, spoilsport)
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naysayer(noun, pessimist)
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party crasher(expression, idiom, hindrance)
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partypooper(noun, spoilsport)
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persona non grata(expression, idiom)
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pessimistic person(expression, spoilsport)
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poor sport(expression, spoilsport)
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proser
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purist
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quitter
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rusk
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stick-in-the-mud
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stick in the mud(noun, spoilsport)
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stickler
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APASmart Define. (2015). killjoy thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/killjoy/thesaurus/synonyms
ChicagoSmart Define. 2015. "killjoy thesaurus" https://smartdefine.org/killjoy/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, killjoy thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/killjoy/thesaurus/synonyms>.
MLASmart Define. "killjoy thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/killjoy/thesaurus/synonyms>