9
energetic(adjective, work, active, labour, multitask)
9
thorough(adjective, careful, thoughtful, sober, earnest)
9
earnest(adjective, thorough, meticulous, painstaking)
9
zealous
8
devoted(adjective, determined, resolute, considerate, responsive)
8
hardworking(adjective, work, labour, conscientious, multitask)
8
intent(adjective, activity, lively, caring, thoughtful)
8
meticulous(adjective, complete, tough, full, careful)
8
patient
8
punctilious(adjective, careful, thorough, meticulous, painstaking)
8
unrelenting
7
exacting(adjective, careful, thorough, meticulous, painstaking)
7
steady
6
alert(adjective, thoughtful, sober, considerate, cautious)
6
dogged
6
heedful(adjective, thorough, meticulous, painstaking)
6
persisting
6
strenuous(adjective, thorough, meticulous, painstaking)
5
eager(adjective, determined, active, thoughtful, serious)
5
enterprising(adjective, active)
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APASmart Define. (2015). assiduous thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/assiduous/thesaurus/synonyms
ChicagoSmart Define. 2015. "assiduous thesaurus" https://smartdefine.org/assiduous/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, assiduous thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/assiduous/thesaurus/synonyms>.
MLASmart Define. "assiduous thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/assiduous/thesaurus/synonyms>