- Definitions|2
- Thesaurus|1.7k
- Abbreviations|0
129 entries under adjective topic. ×
| malignant(mean, bad, evil, nasty) | |
| noisome(bad, evil, offensive, immoral) | |
| unhealthy(offensive, foul, disgusting, distressing) | |
| unwholesome(offensive, foul, disgusting, unhealthy) | |
| dangerous(bad, offensive, foul, harmful) | |
| deadly(bad, evil, cruel, unkind) | |
| disastrous(harmful, injurious, damaging, deadly) | |
| malign(mean, bad, evil, nasty) | |
| virulent(mean, bad, evil, nasty) | |
| calamitous(harmful, injurious, damaging, deadly) | |
| catastrophic(harmful, injurious, damaging, deadly) | |
| lethal(bad, evil, harmful, injurious) | |
| malicious(mean, bad, wrong, evil) | |
| nocuous(cruel, negative, unkind, harmful) | |
| corrupt(evil, low, foul, vicious) | |
| insalubrious(offensive, foul, disgusting, harmful) | |
| unfavourable | |
| venomous(mean, bad, evil, nasty) | |
| fatal(bad, evil, harmful, injurious) | |
| inimical(offensive, negative, foul, unhealthy) |
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| APA | Smart Define. (2016). deleterious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/deleterious/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "deleterious thesaurus" https://smartdefine.org/deleterious/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, deleterious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/deleterious/thesaurus/synonyms>. |
| MLA | Smart Define. "deleterious thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/deleterious/thesaurus/synonyms> |