4
thoroughness(noun, care, industry, scrupulousness, conscientiousness)
4
vigilance(noun, trouble, regard, concern, care)
4
work(noun, activity, undertaking, employment, toil)
3
advertence
3
advertency
3
firmness(noun, resolve, determination, persistence, obstinacy)
3
fortitude(noun, restraint, resolution, capacity, stamina)
3
keenness(noun, activity, passion, spirit, care)
3
labor(noun, activity, work, vigor, determination)
3
observance(care, attention, caution, carefulness, watchfulness)
3
pains(noun, activity, trouble, work, regard)
3
regard(noun, trouble, concern, interest, notice)
3
scrutiny(noun, mind, interest, notice, attention)
3
staunchness(noun, resolve, determination, resolution, firmness)
3
staying power(noun, expression, restraint, capacity, fortitude)
3
stick-to-itiveness(noun, passion, spirit, resolve, determination)
3
strain(noun, activity, work, undertaking, employment)
3
study(noun, mind, interest, notice, attention)
3
tenaciousness(noun, resolve, firmness, obstinacy, stubbornness)
3
thought(noun, trouble, regard, concern, mind)
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APASmart Define. (2016). diligence thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/diligence/thesaurus/synonyms
ChicagoSmart Define. 2016. "diligence thesaurus" https://smartdefine.org/diligence/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, diligence thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/diligence/thesaurus/synonyms>.
MLASmart Define. "diligence thesaurus" 9 March 2016. Web. 25 September 2026. <https://smartdefine.org/diligence/thesaurus/synonyms>