166 entries under adjective topic. ×

9
energetic(work, active, labour, multitask)
9
thorough(careful, thoughtful, sober, earnest)
9
earnest(thorough, meticulous, painstaking)
9
zealous
8
devoted(determined, resolute, considerate, responsive)
8
hardworking(work, labour, conscientious, multitask)
8
intent(activity, lively, caring, thoughtful)
8
meticulous(complete, tough, full, careful)
8
punctilious(careful, thorough, meticulous, painstaking)
7
exacting(careful, thorough, meticulous, painstaking)
7
steady
6
alert(thoughtful, sober, considerate, cautious)
6
dogged
6
heedful(thorough, meticulous, painstaking)
6
strenuous(thorough, meticulous, painstaking)
5
eager(determined, active, thoughtful, serious)
5
enterprising
5
intense
5
resolute
5
steadfast
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APASmart Define. (2015). assiduous thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/assiduous/thesaurus/synonyms
ChicagoSmart Define. 2015. "assiduous thesaurus" https://smartdefine.org/assiduous/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, assiduous thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/assiduous/thesaurus/synonyms>.
MLASmart Define. "assiduous thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/assiduous/thesaurus/synonyms>