190 entries under fixed topic. ×
| convinced(clear, certain, determined, sure) | |
| cool(adjective, solid, cold, indifferent, stable) | |
| effective(adjective, trustworthy, dependable, conscientious) | |
| entrenched(adjective, solid, determined, usual, regular) | |
| even(adjective, calm, strong, secure, solid) | |
| glued(true, constant, steadfast, immovable) | |
| habitual(adjective, dull, steady, stable, regular) | |
| immotile(calm, secure, still, steady) | |
| imperturbable(adjective, solid, stable, sturdy) | |
| liege(adjective, continue, honest, solid, pure) | |
| opinionated(adjective, tough, determined, unreasonable) | |
| perverse(adjective, mean, hard, tough, determined) | |
| pitiless(difficult, rigid, troubled, inflexible) | |
| true blue(expression, true, ardent, constant) | |
| unflappable(adjective, dull, set, solid, usual) | |
| uniform(adjective, calm, strong, secure, solid) | |
| wedged(true, constant, steadfast, immovable) | |
| wholehearted(adjective, complete, total, solid, certain) | |
| ardent(adjective, close, correct, honest, solid) | |
| brick-wall(adjective, calm, strong, secure, solid) |
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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> |