- Definitions|2
- Thesaurus|1.8k
- Abbreviations|0
646 entries under adjective topic. ×
| intent(strong, flat, intense, certain) | |
| single-minded(keen, firm, sensible, solid) | |
| tough(calm, clear, strong, severe) | |
| indomitable(strong, determined, vigorous, noble) | |
| pertinacious(tough, firm, determined, resolute) | |
| stalwart(calm, strong, tough, keen) | |
| diligent(resolute, persevering, tenacious) | |
| insistent(determined, resolute, obstinate, uncompromising) | |
| intransigent(determined, resolute, obstinate, stubborn) | |
| trustworthy(good, close, strong, correct) | |
| trusty(good, close, strong, correct) | |
| undaunted(bold, brave, tenacious) | |
| unfailing(good, strong, honest, solid) | |
| untiring | |
| brave(clear, tough, severe, determined) | |
| decided(firm, intense, certain, deliberate) | |
| definite(good, strong, complete, easy) | |
| secure(verb, calm, strong, firm) | |
| stern(firm, resolute, persistent, rigid) | |
| strong-willed(strong, tough, firm, intense) |
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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> |