108 entries under foul topic. ×
| harmful(adjective, mean, bad, wrong, evil) | |
| offensive(adjective, bad, evil, nasty, base) | |
| deleterious(adjective, mean, bad, wrong, evil) | |
| noisome(adjective, bad, evil, offensive, rank) | |
| poisonous(adjective, mean, bad, nasty, offensive) | |
| injurious(adjective, mean, bad, wrong, evil) | |
| disgusting(adjective, bad, evil, nasty, offensive) | |
| detrimental(adjective, mean, bad, wrong, evil) | |
| nasty(adjective, mean, bad, evil, offensive) | |
| unwholesome(adjective, offensive, unpleasant, disgusting) | |
| unhealthy(adjective, disagreeable, unhealthy, rotten) | |
| vile(adjective, mean, bad, wrong, evil) | |
| repulsive(adjective, bad, evil, offensive, base) | |
| sickening(adjective, bad, evil, offensive, base) | |
| loathsome(adjective, bad, evil, offensive, base) | |
| obnoxious(adjective, bad, nasty, offensive, unpleasant) | |
| dangerous(adjective, bad, evil, offensive, cruel) | |
| nauseating(adjective, bad, evil, offensive, base) | |
| revolting(adjective, bad, evil, offensive, base) | |
| bad(adjective, mean, wrong, evil, harsh) |
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| APA | Smart Define. (2015). noxious thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/noxious/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "noxious thesaurus" https://smartdefine.org/noxious/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, noxious thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/noxious/thesaurus/synonyms>. |
| MLA | Smart Define. "noxious thesaurus" 17 July 2015. Web. 24 September 2026. <https://smartdefine.org/noxious/thesaurus/synonyms> |