455 entries under adjective topic. ×
| long-standing(continue, strain, firmness, labour) | |
| fast(strong, tough, strain, firm) | |
| refractory(strain, firmness, labour, hardiness) | |
| unalterable(strong, strain, flat, certain) | |
| staying(strain, firmness, labour, hardiness) | |
| sustained(strain, firmness, constant, continuous) | |
| settled(strong, strain, flat, firm) | |
| stout(strain, firmness, labour, hardiness) | |
| quiescent(strain, firmness, labour, hardiness) | |
| resist(verb, strain, firmness, labour) | |
| seamless(strain, firmness, continuous, labour) | |
| stationary(strain, firmness, labour, hardiness) | |
| substantial(strain, firmness, labour, hardiness) | |
| tolerant(quiet, understanding, gentle, strain) | |
| robust(strain, firmness, labour, hardiness) | |
| stabile(strain, steady, regular, firmness) | |
| tight(strain, firmness, labour, hardiness) | |
| stubborn(characteristic, quality, stubbornness, determined) | |
| tenacious(strong, tough, flat, firm) | |
| continual(continue, certain, determined, usual) |
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| APA | Smart Define. (2015). persistent thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/persistent/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "persistent thesaurus" https://smartdefine.org/persistent/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, persistent thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/persistent/thesaurus/synonyms>. |
| MLA | Smart Define. "persistent thesaurus" 1 June 2015. Web. 20 September 2026. <https://smartdefine.org/persistent/thesaurus/synonyms> |