248 entries under adjective topic. ×
| unwholesome(offensive, unpleasant, foul, disgusting) | |
| inimical(person, unfriendly, antagonistic, contrary) | |
| poisonous(bad, evil, offensive, cruel) | |
| malign(injurious, hurtful) | |
| deadly(bad, evil, cruel, unkind) | |
| mischievous(help, offensive, negative, foul) | |
| prejudicial(bad, cruel, negative, hurtful) | |
| catastrophic(dreadful, unfortunate, injurious, damaging) | |
| fatal(bad, evil, dreadful, dangerous) | |
| virulent(unhealthy, injurious, hurtful, noxious) | |
| ill(help, mean, bad, evil) | |
| lethal(bad, evil, risky, dangerous) | |
| malicious(bad, cruel, corrupt, injurious) | |
| nocuous(cruel, negative, unkind, dangerous) | |
| painful(bad, severe, offensive, awful) | |
| nasty(person, bad, evil, offensive) | |
| calamitous(severe, awful, terrible, wicked) | |
| insalubrious(offensive, unpleasant, foul, disgusting) | |
| noisome(bad, evil, offensive, foul) | |
| sinister(bad, evil, nasty, injurious) |
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| APA | Smart Define. (2016). harmful thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/harmful/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "harmful thesaurus" https://smartdefine.org/harmful/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, harmful thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/harmful/thesaurus/synonyms>. |
| MLA | Smart Define. "harmful thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/harmful/thesaurus/synonyms> |