- Definitions|2
- Thesaurus|1.1k
- Abbreviations|0
| unhealthful(offensive, foul, disgusting, harmful, poisonous) | |
| unwholesome(offensive, foul, disgusting, harmful, injurious) | |
| venomous(adjective, bad, evil, harmful, injurious) | |
| catching | |
| cranky | |
| detrimental(adjective, bad, evil, harmful, injurious) | |
| envenomed | |
| epizootic | |
| inconvenient(adjective, troublesome, bothersome) | |
| infective | |
| infuriating | |
| loathsome(adjective, bad, nasty, offensive, terrible) | |
| maddening | |
| malignant(adjective, bad, injurious, damaging, deadly) | |
| mephitic | |
| painful(adjective, injurious, damaging, destructive, disorderly) | |
| peevish | |
| polluted | |
| unhygienic | |
| bad(offensive, foul, disgusting, injurious, damaging) |
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| APA | Smart Define. (2015). pestiferous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/pestiferous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "pestiferous thesaurus" https://smartdefine.org/pestiferous/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, pestiferous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/pestiferous/thesaurus/synonyms>. |
| MLA | Smart Define. "pestiferous thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/pestiferous/thesaurus/synonyms> |