- Definitions|2
- Thesaurus|1.2k
- Abbreviations|0
| terrifying(adjective, unpleasant, awful, terrible, disgusting) | |
| woeful(adjective, awful, terrible, horrible, afraid) | |
| agonizing(adjective, endured) | |
| barbarous(adjective, wicked, shocking, shameful, disgraceful) | |
| brutal | |
| degenerate(adjective, wrong, evil, wicked, immoral) | |
| disreputable | |
| extreme(adjective, shocking, shameful, atrocious, disgraceful) | |
| grim(adjective, mean, nasty, offensive, unpleasant) | |
| improper | |
| indecent(adjective, bad, wrong, blue, evil) | |
| inhuman(adjective, awful, foul, disgusting, immoral) | |
| invidious(adjective, nasty, dislike, terrible, disgusting) | |
| lamentable | |
| lousy(adjective, offensive, unpleasant, awful, violent) | |
| maleficent | |
| naughty(adjective, wicked) | |
| nauseous(adjective, taste, awful, terrible, apperance) | |
| rank(adjective, blue, evil, offensive, unpleasant) | |
| scurvy(adjective, vice) |
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| APA | Smart Define. (2015). heinous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/heinous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "heinous thesaurus" https://smartdefine.org/heinous/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, heinous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/heinous/thesaurus/synonyms>. |
| MLA | Smart Define. "heinous thesaurus" 15 October 2015. Web. 23 September 2026. <https://smartdefine.org/heinous/thesaurus/synonyms> |