190 entries under fixed topic. ×
| sturdy(adjective, calm, strong, hard, sound) | |
| unfaltering(adjective, strong, complete, total, solid) | |
| secure(verb, adjective, calm, fix, strong) | |
| unflinching(adjective, strong, certain, determined, steady) | |
| unswerving(adjective, close, strong, tough, correct) | |
| sure(adjective, calm, good, close, clear) | |
| decided(adjective, set, clear, intense, certain) | |
| dogged(adjective, mean, strong, hard, tough) | |
| reliable(adjective, calm, close, clear, strong) | |
| certain(adjective, characteristic, good, change, clear) | |
| unchanging(adjective, close, correct, moderate, severe) | |
| intent(adjective, set, intense, certain, deliberate) | |
| unchangeable(adjective, calm, strong, secure, moderate) | |
| rooted(adjective, strong, hard, secure, property) | |
| dependable(adjective, good, close, strong, tough) | |
| hard-nosed(adjective, mean, clear, strong, hard) | |
| abiding(adjective, calm, strong, complete, secure) | |
| decisive(adjective, good, set, clear, strong) | |
| changeless(adjective, solid, certain, stable, limited) | |
| immobile(adjective, calm, quiet, strong, secure) |
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| APA | Smart Define. (2016). firm thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/firm/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "firm thesaurus" https://smartdefine.org/firm/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, firm thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/firm/thesaurus/synonyms>. |
| MLA | Smart Define. "firm thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/firm/thesaurus/synonyms> |