- Definitions|2
- Thesaurus|363
- Abbreviations|0
| venomous(adjective, bad, evil, harmful, injurious) | |
| virulent(adjective, help, unhealthy, deadly, unwholesome) | |
| bothersome | |
| evil(adjective, bad, corrupt, harmful, injurious) | |
| foul(adjective, bad, offensive, disgusting, vile) | |
| galling | |
| hurtful(adjective, bad, evil, harmful, injurious) | |
| injurious(adjective, bad, foul, harmful, damaging) | |
| irritating | |
| malign(adjective, virulent) | |
| malodorous(adjective, bad, offensive, foul, disgusting) | |
| mephitic(adjective, bad, evil, offensive, foul) | |
| mortal(adjective, bad, evil, harmful, injurious) | |
| pesky | |
| pestering | |
| plaguey | |
| annoying | |
| catching | |
| contagious(adjective, communicable) | |
| insalubrious(offensive, foul, disgusting, harmful, poisonous) |
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| APA | Smart Define. (2015). pestilential thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/pestilential/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "pestilential thesaurus" https://smartdefine.org/pestilential/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, pestilential thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/pestilential/thesaurus/synonyms>. |
| MLA | Smart Define. "pestilential thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/pestilential/thesaurus/synonyms> |