108 entries under foul topic. ×
| lousy(adjective, bad, offensive, unpleasant) | |
| moldy(adjective, rank, corrupt, disgusting) | |
| stale(adjective, rank, corrupt, disgusting) | |
| tainted(adjective, rank, corrupt, disgusting) | |
| dirty(adjective, bad, evil, nasty, offensive) | |
| filthy(adjective, bad, evil, offensive, base) | |
| frowzy(adjective, bad, rank, disagreeable) | |
| fusty(adjective, rank, disagreeable, sour) | |
| gamy(adjective, bad, rank, disagreeable) | |
| high(adjective, bad, rank, disagreeable) | |
| insalutary(adjective, offensive, disgusting, harmful) | |
| malevolent(adjective, mean, bad, wrong, evil) | |
| serious(adjective, bad, offensive, revolting) | |
| severe(adjective, bad, offensive, revolting) | |
| stenchy(adjective, rotten, stinking, smelly) | |
| ugly(adjective, bad, evil, offensive, base) | |
| unappetizing(adjective, bad, offensive, revolting) | |
| unclean(adjective, bad, offensive, dirty) | |
| decayed(adjective, bad, corrupt, disgusting) | |
| decomposed(adjective, bad, corrupt, disgusting) |
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| APA | Smart Define. (2015). noxious thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/noxious/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "noxious thesaurus" https://smartdefine.org/noxious/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, noxious thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/noxious/thesaurus/synonyms>. |
| MLA | Smart Define. "noxious thesaurus" 17 July 2015. Web. 26 September 2026. <https://smartdefine.org/noxious/thesaurus/synonyms> |