- Definitions|2
- Thesaurus|1.9k
- Abbreviations|0
209 entries under adjective topic. ×
| fell(harmful, injurious, damaging, deadly) | |
| flinty(evil, nasty, harsh, vicious) | |
| hard(evil, nasty, harsh, vicious) | |
| hard-hearted(evil, nasty, harsh, vicious) | |
| hellish(evil, nasty, harsh, vicious) | |
| hideous | |
| horrible | |
| horrid | |
| hostile(nasty, negative, vicious, wicked) | |
| ill-boding | |
| implacable(evil, nasty, harsh, vicious) | |
| in poor condition | |
| inexorable(evil, nasty, harsh, vicious) | |
| infernal | |
| inhumane(evil, nasty, harsh, vicious) | |
| insalutary(offensive, foul, disgusting, harmful) | |
| intimidatory | |
| lethiferous(harmful, injurious, damaging, deadly) | |
| life-threatening | |
| loathsome |
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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> |