2
tidily(adverb, cleanly)
2
vigilantly(adverb, severely, thoroughly, fully, precisely)
2
warily(severely, thoroughly, fully, precisely, correctly)
2
watchfully(adverb, severely, thoroughly, fully, precisely)
1
alertly(adverb, vigilantly)
1
anxiously(severely, thoroughly, fully, precisely, correctly)
1
captiously
1
cautiously(adverb, vigilantly)
1
cautiously painstakingly(expression, severely, thoroughly, fully, precisely)
1
censoriously
1
concernedly(severely, thoroughly, fully, precisely, correctly)
1
decently
1
deliberately(severely, thoroughly, fully, precisely, correctly)
1
demandingly
1
dependably(severely, thoroughly, fully, precisely, correctly)
1
discriminatingly
1
exigently
1
expertly
1
faithfully(severely, thoroughly, fully, precisely, correctly)
1
flawlessly
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APASmart Define. (2015). fastidiously thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/fastidiously/thesaurus/synonyms
ChicagoSmart Define. 2015. "fastidiously thesaurus" https://smartdefine.org/fastidiously/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, fastidiously thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/fastidiously/thesaurus/synonyms>.
MLASmart Define. "fastidiously thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/fastidiously/thesaurus/synonyms>