- Definitions|2
- Thesaurus|1.9k
- Abbreviations|0
| unhealthful(adjective, offensive, foul, disgusting, unhealthy) | |
| atrocious(adjective, bad, evil, nasty, harsh) | |
| badly | |
| brutal(adjective, evil, nasty, harsh, vicious) | |
| corroding(injurious, damaging, destructive) | |
| corrupting(distressing, harmful, injurious, damaging, destructive) | |
| crippling(adjective, harmful, injurious, damaging, destructive) | |
| cutthroat(adjective, harmful, injurious, damaging, deadly) | |
| damnable | |
| dead | |
| distressing(cruel, unkind, upsetting, harmful, damaging) | |
| disturbing(adjective, harmful, threatening, menacing, unfavorable) | |
| feral | |
| ferocious(adjective, evil, nasty, harsh, vicious) | |
| fierce(adjective, evil, nasty, harsh, vicious) | |
| menacing(adjective, threatening, injurious, damaging, destructive) | |
| miasmatic(adjective, bad, hurtful) | |
| repugnant(adjective, bad, offensive, corrupt, foul) | |
| repulsive | |
| septic |
For more, visit
Pernicious on
Power Thesaurus
| APA | Smart Define. (2016). pernicious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/pernicious/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "pernicious thesaurus" https://smartdefine.org/pernicious/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, pernicious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/pernicious/thesaurus/synonyms>. |
| MLA | Smart Define. "pernicious thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/pernicious/thesaurus/synonyms> |