- Definitions|2
- Thesaurus|1.9k
- Abbreviations|0
209 entries under adjective topic. ×
| suicidal(violent, cruel, harmful, injurious) | |
| lethal(bad, evil, harmful, injurious) | |
| prejudicial(bad, cruel, unkind, harmful) | |
| malevolent(mean, bad, evil, nasty) | |
| pestilent(help, bad, unhealthy, harmful) | |
| dangerous(bad, offensive, foul, disgusting) | |
| malign(mean, bad, evil, nasty) | |
| pestilential(help, bad, evil, harmful) | |
| sinister(bad, evil, nasty, negative) | |
| mischievous(mean, bad, nasty, cruel) | |
| pestiferous(bad, evil, harmful, injurious) | |
| disadvantageous(cruel, unkind, contrary, distressing) | |
| inimical(offensive, negative, foul, antagonistic) | |
| wicked(mean, bad, evil, nasty) | |
| nocuous(cruel, unkind, distressing, harmful) | |
| venomous(mean, bad, evil, nasty) | |
| noisome(bad, evil, offensive, immoral) | |
| unwholesome(offensive, foul, disgusting, unhealthy) | |
| mortal(bad, evil, grave, harmful) | |
| adverse(contrary, dreadful, distressing, injurious) |
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| APA | Smart Define. (2016). pernicious thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/pernicious/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "pernicious thesaurus" https://smartdefine.org/pernicious/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, pernicious thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/pernicious/thesaurus/synonyms>. |
| MLA | Smart Define. "pernicious thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/pernicious/thesaurus/synonyms> |