- Definitions|2
- Thesaurus|1.7k
- Abbreviations|0
| intense | |
| resolute | |
| steadfast | |
| thoroughgoing(adjective, thorough, meticulous, painstaking) | |
| ambitious(adjective, work, labour, multitask) | |
| ardent | |
| close | |
| dynamic(adjective, active) | |
| exact(adjective, thorough, meticulous, painstaking) | |
| finicky(adjective, thorough, meticulous, painstaking) | |
| keen(adjective, smart, skillful, nimble-witted) | |
| mindful(adjective, thoughtful, sober, considerate, cautious) | |
| observant(adjective, thoughtful, sober, considerate, cautious) | |
| operose(adjective, work, labour, multitask) | |
| pertinacious | |
| plodding(adjective, activity, work, labour, multitask) | |
| productive(adjective, work, strain, firmness, labour) | |
| spirited(adjective, active) | |
| tenacious | |
| unfailing(adjective, certain, unchanging) |
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| APA | Smart Define. (2015). assiduous thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/assiduous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "assiduous thesaurus" https://smartdefine.org/assiduous/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, assiduous thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/assiduous/thesaurus/synonyms>. |
| MLA | Smart Define. "assiduous thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/assiduous/thesaurus/synonyms> |