- Definitions|2
- Thesaurus|1.8k
- Abbreviations|0
646 entries under adjective topic. ×
| purposeful(strong, tough, keen, firm) | |
| regular(dull, firm, solid, determined) | |
| sedulous | |
| set in stone(expression, idiom, calm, strong) | |
| stony(cold, indifferent, impassive, unyielding) | |
| unhesitating(complete, firm, certain, serious) | |
| unshaken(clear, strong, flat, firm) | |
| unvarying(calm, strong, secure, firm) | |
| valiant(strong, firm, noble, bold) | |
| adamantine(tough, firm, determined, resolute) | |
| allegiant(close, correct, continue, keen) | |
| committed(kind, keen, warm, firm) | |
| confirmed(certain, determined, usual, steady) | |
| continuous(certain, steady, stable, regular) | |
| contrary(determined, resolute, persistent, obstinate) | |
| deep(clear, tough, severe, determined) | |
| earnest(complete, warm, total, sensible) | |
| hearty(strong, complete, warm, total) | |
| implacable(tough, firm, determined, resolute) | |
| incontrovertible(clear, certain, definite, stability) |
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| APA | Smart Define. (2016). steadfast thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/steadfast/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "steadfast thesaurus" https://smartdefine.org/steadfast/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, steadfast thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/steadfast/thesaurus/synonyms>. |
| MLA | Smart Define. "steadfast thesaurus" 11 March 2016. Web. 24 September 2026. <https://smartdefine.org/steadfast/thesaurus/synonyms> |