2
grinch(noun, spoilsport)
2
marplot(hindrance, spoilsport)
2
nihilist
2
retreatist
2
worrywart
1
bore
1
gloomy Gus
1
interloper(noun, hindrance)
1
Job's comforter
1
calamity howler
1
damp
1
diva
1
downer(noun, drag, worrier, cynic, quitter)
1
fart
1
gloomy(noun, downer, worrier, cynic, quitter)
1
malist
1
milksop
1
milquetoast
1
misanthrope(noun, downer, worrier, cynic, quitter)
1
negativist
11 years ago|8.2k views|share |citing 
APASmart Define. (2015). killjoy thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/killjoy/thesaurus/synonyms
ChicagoSmart Define. 2015. "killjoy thesaurus" https://smartdefine.org/killjoy/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, killjoy thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/killjoy/thesaurus/synonyms>.
MLASmart Define. "killjoy thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/killjoy/thesaurus/synonyms>