87 entries under severe topic. ×
| crotchety(adjective, hard, tough, cruel) | |
| cutthroat(adjective, mean, hard, harsh) | |
| deadened(adjective, hard, tough, cruel) | |
| exacting(adjective, hard, tough, cruel) | |
| feelingless(adjective, hard, tough, indifferent) | |
| hatchet job(expression, adjective, mean, harsh) | |
| having a killer instinct(expression, adjective, idiom, mean) | |
| inanimate(adjective, hard, tough, cruel) | |
| iron-fisted(adjective, mean, harsh, cruel) | |
| iron-hearted(adjective, hard, tough, cruel) | |
| mean machine(expression, adjective, mean, harsh) | |
| mortal(adjective, mean, harsh, cruel) | |
| sensationless(adjective, hard, tough, cruel) | |
| senseless(adjective, hard, tough, cruel) | |
| surly(adjective, mean, hard, tough) | |
| unamiable(adjective, hard, tough, cruel) | |
| unappeasable(adjective, mean, harsh, cruel) | |
| uncordial(adjective, hard, tough, cruel) | |
| unflinching(adjective, mean, harsh, cruel) | |
| dog eat dog(expression, idiom, mean) |
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| APA | Smart Define. (2016). heartless thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/heartless/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "heartless thesaurus" https://smartdefine.org/heartless/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, heartless thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/heartless/thesaurus/synonyms>. |
| MLA | Smart Define. "heartless thesaurus" 24 March 2016. Web. 26 September 2026. <https://smartdefine.org/heartless/thesaurus/synonyms> |