- Definitions|0
- Thesaurus|141
- Abbreviations|0
| hardhearted(adjective, bad behavior) | |
| ill-natured(adjective, bad behavior) | |
| inaudacious(adjective, bad behavior) | |
| flagituous(adjective, bad behavior) | |
| good | |
| cold(adjective, bad behavior) | |
| cold-hearted(adjective, bad behavior) | |
| demoniacal(adjective, bad behavior) | |
| diabolical(adjective, bad behavior) | |
| dreadful | |
| emotionless(adjective, bad behavior) | |
| evil(adjective, bad behavior) | |
| evil-minded(adjective, bad behavior) | |
| fiendish(adjective, bad behavior) | |
| fine | |
| gothly(adjective, bad behavior) | |
| great(adjective, excellent, skillful) | |
| inconsiderate(adjective, bad behavior) | |
| infamous(adjective, bad behavior) | |
| inhumane(adjective, bad behavior) |
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| APA | Smart Define. (2016). hellacious thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/hellacious/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "hellacious thesaurus" https://smartdefine.org/hellacious/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2016, hellacious thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/hellacious/thesaurus/synonyms>. |
| MLA | Smart Define. "hellacious thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/hellacious/thesaurus/synonyms> |