162 entries under determined topic. ×
| firm(noun, adjective, feature, state, characteristic) | |
| consistent(adjective, strong, strain, flat, certain) | |
| strong(adjective, tough, strain, flat, firm) | |
| stable(adjective, strong, tough, strain, flat) | |
| constant(adjective, strong, tough, continue, strain) | |
| steadfast(adjective, feature, state, characteristic, strong) | |
| steady(adjective, feature, state, characteristic, strong) | |
| enduring(adjective, quiet, strong, tough, continue) | |
| perpetual(adjective, continue, strain, usual) | |
| unyielding(adjective, strong, tough, strain, flat) | |
| rigid(adjective, feature, state, characteristic, severe) | |
| fast(adjective, strong, tough, strain, firm) | |
| unalterable(adjective, strong, strain, flat, certain) | |
| settled(adjective, strong, strain, flat, firm) | |
| stubborn(adjective, characteristic, quality, stubbornness) | |
| tenacious(adjective, strong, tough, flat, firm) | |
| continual(adjective, continue, certain, usual) | |
| persevering(adjective, quiet, understanding, strong, tough) | |
| indefatigable(adjective, strong, firm, steady) | |
| resolute(adjective, strong, tough, flat, firm) |
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| APA | Smart Define. (2015). persistent thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/persistent/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "persistent thesaurus" https://smartdefine.org/persistent/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, persistent thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/persistent/thesaurus/synonyms>. |
| MLA | Smart Define. "persistent thesaurus" 1 June 2015. Web. 23 September 2026. <https://smartdefine.org/persistent/thesaurus/synonyms> |