- Definitions|1
- Thesaurus|870
- Abbreviations|0
365 entries under adjective topic. ×
| continual(dull, steady, stable, regular) | |
| cool cat(expression, calm, detached, sober) | |
| coolheaded(calm, quiet, cool, sound) | |
| customary(firm, determined, usual, regular) | |
| dead set on(expression, idiom, set, firm) | |
| decided(firm, solid, certain, determined) | |
| decisive(firm, determined, usual, regular) | |
| definite(firm, solid, certain, determined) | |
| dependable(calm, sound, reasonable, sensible) | |
| determined(firm, solid, usual, steady) | |
| disimpassioned(calm, cool, relaxed, steady) | |
| disinterested(calm, quiet, cool, moderate) | |
| docile(quiet, indifferent, apathetic, lifeless) | |
| dry(calm, cool, blank, aloof) | |
| enduring(calm, quiet, set, cool) | |
| entrenched(firm, determined, usual, regular) | |
| fair(calm, smooth, still, detached) | |
| flat(calm, quiet, indifferent, apathetic) | |
| forbearing(quiet, indifferent, restrained, apathetic) | |
| going through motions(expression, idiom, quiet, indifferent) |
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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> |