891 entries under adjective topic. ×
| pertinacious(strong, tough, determined, steady) | |
| set in stone(expression, idiom, calm, set) | |
| single-minded(tough, solid, intense, deliberate) | |
| strong-willed(strong, tough, intense, deliberate) | |
| tireless(strong, determined, steady, resolute) | |
| undeviating(solid, intense, certain, deliberate) | |
| unvarying(calm, strong, secure, solid) | |
| dedicated(set, clear, strong, tough) | |
| earnest(strong, severe, harsh, important) | |
| emphatic(definite, persistent, unqualified, uncompromising) | |
| flinty(strong, hard, tough, severe) | |
| implacable(mean, strong, hard, tough) | |
| indomitable(strong, hard, tough, determined) | |
| stony(hard, solid, cold, indifferent) | |
| unqualified(complete, total, solid, certain) | |
| unshaken(set, clear, solid, cold) | |
| anchored(calm, strong, secure, solid) | |
| compressed(set, hard, solid, heavy) | |
| concentrated(set, strong, hard, solid) | |
| condensed(set, hard, solid, heavy) |
For more, visit
Firm on
Power Thesaurus
| APA | Smart Define. (2016). firm thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/firm/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "firm thesaurus" https://smartdefine.org/firm/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, firm thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/firm/thesaurus/synonyms>. |
| MLA | Smart Define. "firm thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/firm/thesaurus/synonyms> |