173 entries under persistent topic. ×
| dependable(adjective, good, close, strong, tough) | |
| severe(adjective, clear, strong, hard, tough) | |
| stalwart(adjective, calm, strong, sound, tough) | |
| abiding(adjective, calm, strong, complete, secure) | |
| decisive(adjective, good, set, clear, strong) | |
| changeless(adjective, solid, certain, stable, limited) | |
| immobile(adjective, calm, quiet, strong, secure) | |
| immutable(adjective, calm, strong, hard, secure) | |
| pertinacious(adjective, strong, tough, determined, steady) | |
| single-minded(adjective, tough, solid, intense, deliberate) | |
| strong-willed(adjective, strong, tough, intense, deliberate) | |
| unvarying(adjective, calm, strong, secure, solid) | |
| dedicated(adjective, set, clear, strong, tough) | |
| earnest(adjective, strong, severe, harsh, important) | |
| emphatic(adjective, definite, unqualified, uncompromising) | |
| indomitable(adjective, strong, hard, tough, determined) | |
| unqualified(adjective, complete, total, solid, certain) | |
| purposeful(adjective, strong, tough, determined, serious) | |
| strong-minded(adjective, certain, determined, significant, resolution) | |
| bent(adjective, set, intense, certain, deliberate) |
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| APA | Smart Define. (2016). firm thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/firm/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "firm thesaurus" https://smartdefine.org/firm/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, firm thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/firm/thesaurus/synonyms>. |
| MLA | Smart Define. "firm thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/firm/thesaurus/synonyms> |