- Definitions|2
- Thesaurus|746
- Abbreviations|0
| empty(adjective, dull, dead, impassive, unresponsive) | |
| equable(adjective, quiet, cool, moderate, gentle) | |
| even-tempered(adjective, unexcitable) | |
| extreme | |
| furtive | |
| hardened(adjective, cool, blank, aloof, unemotional) | |
| heartless(adjective, cool, blank, aloof, unemotional) | |
| inarticulate | |
| incoherent | |
| inconceivable | |
| indurated(adjective, cool, blank, aloof, unemotional) | |
| inexcitable(adjective, cool, blank, aloof, unemotional) | |
| inexpressive(adjective, dull, cool, dead, blank) | |
| insensible(adjective, cool, blank, aloof, unemotional) | |
| insolvable | |
| insusceptible(adjective, cool, blank, aloof, unemotional) | |
| laid-back(adjective, quiet, cool, moderate, gentle) | |
| level-headed(adjective, unexcitable) | |
| levelheaded(adjective, quiet, cool, moderate, gentle) | |
| listless(adjective, quiet, cool, moderate, gentle) |
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| APA | Smart Define. (2015). inscrutable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/inscrutable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "inscrutable thesaurus" https://smartdefine.org/inscrutable/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, inscrutable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/inscrutable/thesaurus/synonyms>. |
| MLA | Smart Define. "inscrutable thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/inscrutable/thesaurus/synonyms> |