104 entries under fixed topic. ×
| tight(adjective, strong, tough, firm, solid) | |
| unfluctuating(adjective, calm, strong, secure, firm) | |
| uniform(adjective, calm, strong, secure, firm) | |
| adherent(firm, true, constant, steadfast) | |
| assigned(positive, settled) | |
| glued(firm, true, constant, steadfast) | |
| held(firm, true, constant, steadfast) | |
| imperturbable(adjective, firm, solid, certain, stable) | |
| indelible(firm, true, constant, steadfast) | |
| inextricable(firm, true, constant, steadfast) | |
| levelheaded(adjective, calm, quiet, cool, firm) | |
| patterned(adjective, firm, solid, stable) | |
| reserved(adjective, firm, solid, stable) | |
| resistant(firm, true, constant, steadfast) | |
| rigid(adjective, definite, resolute, persistent) | |
| sedate(adjective, firm, solid, stable) | |
| serene(adjective, calm, quiet, cool, firm) | |
| serious-minded(adjective, firm, solid, stable) | |
| single-minded(adjective, firm, solid, steady, stable) | |
| staid(adjective, firm, solid, stable) |
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| APA | Smart Define. (2016). sure thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/sure/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "sure thesaurus" https://smartdefine.org/sure/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, sure thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/sure/thesaurus/synonyms>. |
| MLA | Smart Define. "sure thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/sure/thesaurus/synonyms> |