455 entries under adjective topic. ×
| prolonged(continue, constant, lasting, protracted) | |
| reliable(strong, tough, honest, certain) | |
| remaining(current, enduring, lasting, ongoing) | |
| serious(strong, firm, determined, bold) | |
| stern(resolute, obstinate, insistent, dogged) | |
| sticky(informal, determined) | |
| sturdy | |
| timeless(continue, steady, constant, continuous) | |
| undying | |
| unshakeable | |
| unstoppable | |
| unwearied(strong, firm, energetic, determined) | |
| zealous | |
| around-the-clock(continue, continual) | |
| bloody-minded(obstinate, insistent, dogged) | |
| careful | |
| dynamic | |
| exacting(obstinate, insistent, dogged) | |
| extended(protracted, lengthy, continued) | |
| hell-bent(obstinate, insistent, dogged) |
For more, visit
Persistent on
Power Thesaurus
| 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> |