108 entries under foul topic. ×
| evil(adjective, mean, bad, wrong, nasty) | |
| hurtful(adjective, mean, bad, wrong, evil) | |
| repugnant(adjective, bad, evil, offensive, base) | |
| damaging(adjective, mean, bad, wrong, evil) | |
| rotten(adjective, bad, rank, disagreeable) | |
| fetid(adjective, rank, corrupt, disgusting) | |
| mephitic(adjective, bad, evil, offensive, corrupt) | |
| repellent(adjective, bad, evil, offensive, base) | |
| odious(adjective, bad, offensive, revolting) | |
| pestilential(adjective, help, bad, evil) | |
| putrid(adjective, rank, disgusting, disagreeable) | |
| rancid(adjective, awful, rank, dirty) | |
| insalubrious(adjective, offensive, unpleasant, disgusting) | |
| horrible(adjective, evil, nasty, offensive, unpleasant) | |
| mischievous(adjective, mean, bad, nasty, offensive) | |
| rank(adjective, corrupt, disgusting, disagreeable) | |
| awful(adjective, mean, bad, nasty, offensive) | |
| objectionable(adjective, bad, offensive, unpleasant) | |
| ruinous(adjective, mean, bad, wrong, evil) | |
| malodorous(adjective, bad, offensive, rank) |
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| APA | Smart Define. (2015). noxious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/noxious/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "noxious thesaurus" https://smartdefine.org/noxious/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, noxious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/noxious/thesaurus/synonyms>. |
| MLA | Smart Define. "noxious thesaurus" 17 July 2015. Web. 25 September 2026. <https://smartdefine.org/noxious/thesaurus/synonyms> |