- Definitions|1
- Thesaurus|870
- Abbreviations|0
365 entries under adjective topic. ×
| habitual(dull, steady, stable, regular) | |
| hands off(expression, quiet, indifferent, apathetic) | |
| hanging tough(expression, firm, determined, usual) | |
| homogeneous(dull, steady, stable, regular) | |
| iceberg(calm, detached, sober, unfeeling) | |
| idle(quiet, indifferent, apathetic, lifeless) | |
| immutable(dull, steady, stable, regular) | |
| impartial(calm, detached, sober, unfeeling) | |
| impersonal(calm, detached, sober, unfeeling) | |
| in control(expression, tranquil, unperturbed) | |
| inactive(quiet, cool, indifferent, still) | |
| indurated(cool, blank, aloof, unemotional) | |
| inert(quiet, indifferent, apathetic, lifeless) | |
| inexpressive(cool, blank, aloof, unemotional) | |
| insensible(cool, blank, aloof, unemotional) | |
| insusceptible(cool, blank, aloof, unemotional) | |
| intent(firm, determined, usual, regular) | |
| invariable(dull, steady, stable, regular) | |
| inveterate(firm, determined, usual, regular) | |
| ironclad(firm, determined, usual, regular) |
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| APA | Smart Define. (2015). unflappable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unflappable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unflappable thesaurus" https://smartdefine.org/unflappable/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, unflappable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unflappable/thesaurus/synonyms>. |
| MLA | Smart Define. "unflappable thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/unflappable/thesaurus/synonyms> |