7
carefully(adverb, severely, thoroughly, precisely, strictly)
7
fussily(adverb, vigilantly)
7
meticulously(adverb, severely, thoroughly, fully, precisely)
7
particularly(adverb, severely, thoroughly, fully, precisely)
5
conscientiously(adverb, severely, thoroughly, fully, precisely)
5
delicately(adverb, severely, thoroughly, fully, precisely)
5
precisely(adverb, severely, thoroughly, fully, correctly)
4
critically
4
daintily
4
exactingly(adverb, vigilantly)
4
immaculately(adverb, cleanly)
4
scrupulously(adverb, severely, thoroughly, fully, precisely)
4
squeamishly
3
accurately
3
neatly(adverb, cleanly)
3
painstakingly(adverb, thoroughly, precisely, meticulously)
3
primly
3
purely(adverb, cleanly)
2
attentively(adverb, severely, thoroughly, fully, precisely)
2
choosily
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APASmart Define. (2015). fastidiously thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/fastidiously/thesaurus/synonyms
ChicagoSmart Define. 2015. "fastidiously thesaurus" https://smartdefine.org/fastidiously/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, fastidiously thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/fastidiously/thesaurus/synonyms>.
MLASmart Define. "fastidiously thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/fastidiously/thesaurus/synonyms>