Synonyms|200Antonyms|66|Broader|0Narrower|0Related|85
3
unremittingly(adverb, thoroughly, seriously, vigorously, closely)
3
vigilantly(adverb, vigorously, earnestly, actively, hastily)
3
watchfully(adverb, thoroughly, carefully, meticulously, faithfully)
2
alertly(adverb, vigilantly, attentively)
2
arduously(adverb, vigorously, earnestly, actively, hastily)
2
boldly(adverb, resolutely, tenaciously)
2
courageously(adverb, resolutely, tenaciously)
2
dauntlessly(adverb, resolutely, tenaciously)
2
decisively(adverb, resolutely, tenaciously)
2
deliberately(adverb, resolutely)
2
earnestly(adverb, thoroughly, vigorously, closely, actively)
2
exactingly(adverb, fastidiously, vigilantly)
2
fastidiously(adverb, fastidiously, vigilantly)
2
fussily(adverb, fastidiously, vigilantly)
2
hardly
2
indomitably(adverb, resolutely, tenaciously)
2
intensely
2
mightily
2
observantly(adverb, attentively)
2
particularly(adverb, fastidiously, vigilantly)
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APASmart Define. (2015). diligently thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/diligently/thesaurus/synonyms
ChicagoSmart Define. 2015. "diligently thesaurus" https://smartdefine.org/diligently/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, diligently thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/diligently/thesaurus/synonyms>.
MLASmart Define. "diligently thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/diligently/thesaurus/synonyms>