- Definitions|1
- Thesaurus|404
- Abbreviations|0
| immobile | |
| impenetrable(adjective, hard, unfeeling, unsympathetic, hardened) | |
| imperceptive(adjective, hard, impassive, insensitive, unsusceptible) | |
| imperturbable | |
| impious(adjective, hard, unfeeling, unsympathetic, hardened) | |
| inaccessible(adjective, hard, unfeeling, unsympathetic, hardened) | |
| inclement | |
| incurious(hard, insensitive, unsusceptible) | |
| inexpressive(adjective, detached, impassive, unresponsive, dispassionate) | |
| inhuman | |
| insouciant | |
| irreverent(adjective, hard, unfeeling, unsympathetic, hardened) | |
| lackadaisical | |
| laid back(expression, insensitive, obdurate) | |
| nonchalant | |
| pitiless(adjective, unfeeling, unsympathetic, uncaring, insensitive) | |
| poker-faced(adjective, detached, impassive, unresponsive, dispassionate) | |
| prepared(adjective, hard, unfeeling, unsympathetic, hardened) | |
| remote | |
| resistant(adjective, hard, unfeeling, unsympathetic, hardened) |
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| APA | Smart Define. (2015). unimpressionable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unimpressionable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unimpressionable thesaurus" https://smartdefine.org/unimpressionable/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, unimpressionable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unimpressionable/thesaurus/synonyms>. |
| MLA | Smart Define. "unimpressionable thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/unimpressionable/thesaurus/synonyms> |