| killjoy(noun, drag, downer, worrier, cynic) | |
| spoilsport(noun, killjoy) | |
| wet blanket(noun, expression, person, downer, worrier) | |
| sourpuss(noun, drag, downer, worrier, cynic) | |
| buzzkill | |
| malcontent(noun, killjoy, spoilsport) | |
| cockblock | |
| grinch(noun, killjoy, spoilsport) | |
| grouch(noun, killjoy, spoilsport) | |
| picklepuss | |
| cynic(noun, downer, worrier, quitter, doubter) | |
| damper(noun, killjoy, spoilsport) | |
| prophet of doom(noun, expression, idiom, downer, worrier) | |
| dampener | |
| pessimist(noun, person) | |
| stick-in-the-mud(noun, killjoy, spoilsport) | |
| drip | |
| misery(killjoy, spoilsport) | |
| Cassandra | |
| defeatist(noun, downer, worrier, cynic, quitter) |
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| APA | Smart Define. (2015). party pooper thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/party_pooper/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "party pooper thesaurus" https://smartdefine.org/party_pooper/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, party pooper thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/party_pooper/thesaurus/synonyms>. |
| MLA | Smart Define. "party pooper thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/party_pooper/thesaurus/synonyms> |