- Definitions|0
- Thesaurus|180
- Abbreviations|0
| be determined(verb, advance, continue, extend, stick) | |
| be diligent | |
| be indefatigable | |
| be inflexible | |
| be intractable | |
| be intransigent | |
| be obdurate | |
| be obstinate | |
| be patient | |
| be pertinacious | |
| be plucky | |
| be resolute(verb, continue, endure, remain, persevere) | |
| be resolved(verb, advance, continue, extend, stick) | |
| be sedulous | |
| be staunch | |
| be tenacious | |
| be tireless | |
| be untiring | |
| beaver away | |
| burn the midnight oil(verb, expression, idiom, plug) |
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| APA | Smart Define. (2015). keep at thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/keep_at/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "keep at thesaurus" https://smartdefine.org/keep_at/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, keep at thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/keep_at/thesaurus/synonyms>. |
| MLA | Smart Define. "keep at thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/keep_at/thesaurus/synonyms> |