- Definitions|2
- Thesaurus|928
- Abbreviations|0
292 entries under adjective topic. ×
| unsympathetic(bad, cold, indifferent, detached) | |
| apathetic(indifferent, detached, distant, unfeeling) | |
| closed | |
| closed to(expression, unyielding, unbending, unable) | |
| cold(calm, indifferent, restrained, detached) | |
| emotionless(bad, cold, aloof, no feelings) | |
| hard-boiled(noun, calm, bad, cold) | |
| hard-hearted(calm, bad, cold, restrained) | |
| impregnable(secure, safe, snug, intact) | |
| inflexible(hard, tough, solid, rigid) | |
| leakproof | |
| steely | |
| thick(hard, solid, rigid, dense) | |
| tough(noun, set, strong, hard) | |
| unconcerned(calm, indifferent, restrained, detached) | |
| unpierceable(unyielding, unbending, unable, unreceptive) | |
| aloof(calm, indifferent, restrained, detached) | |
| close(set, hard, tough, solid) | |
| dense(set, hard, tough, solid) | |
| durable(sturdy, enduring) |
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| APA | Smart Define. (2015). impervious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/impervious/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "impervious thesaurus" https://smartdefine.org/impervious/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, impervious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/impervious/thesaurus/synonyms>. |
| MLA | Smart Define. "impervious thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/impervious/thesaurus/synonyms> |