97 entries under cool topic. ×
| glacial(adjective, detached, blank, sober) | |
| halfhearted(adjective, mean, hard, unpleasant) | |
| in cold blood(expression, adjective, idiom, detached) | |
| inexpressive(adjective, detached, blank, aloof) | |
| inscrutable(adjective, blank, aloof, unemotional) | |
| laid back(expression, adjective, detached, blank) | |
| lukewarm(adjective, mean, hard, unpleasant) | |
| matter-of-fact(adjective, cold, cruel, detached) | |
| nowhere(adjective, detached, blank, sober) | |
| placid(adjective, blank, aloof, unemotional) | |
| poker-faced(adjective, detached, blank, aloof) | |
| poker face(expression, adjective, detached, blank) | |
| remote(adjective, detached, blank, sober) | |
| repellent(adjective, mean, hard, unpleasant) | |
| repugnant(adjective, mean, hard, unpleasant) | |
| reserved(adjective, detached, blank, aloof) | |
| reticent(adjective, detached, blank, aloof) | |
| sedate(adjective, blank, aloof, unemotional) | |
| self-contained(adjective, blank, aloof, unemotional) | |
| serene(adjective, blank, aloof, unemotional) |
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Heartless on
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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> |