3
sharp(exact, discerning, astute, disapprobation, discriminating)
3
smart
3
spick-and-span(adjective, clean)
3
spruce
3
thoughtful(adjective, sober, cautious, prudent, wary)
3
unstained(adjective, clean)
3
watchful(adjective, cautious, suspicious, wary, vigilant)
3
well-groomed
2
anal
2
assiduous(adjective, careful, thoughtful, sober, prudent)
2
choicy(adjective, sharp, refined, critical, discerning)
2
circumspect(adjective, delicate, careful, thoughtful, sober)
2
civilized(superior, sophisticated, advanced)
2
clean-cut
2
cynical
2
detailed(careful, thorough, scrupulous)
2
differential
2
difficile(tough, problematic, trying)
2
dirt-free
2
discreet(delicate, careful, thoughtful, sober, prudent)
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APASmart Define. (2016). fastidious thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/fastidious/thesaurus/synonyms
ChicagoSmart Define. 2016. "fastidious thesaurus" https://smartdefine.org/fastidious/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, fastidious thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/fastidious/thesaurus/synonyms>.
MLASmart Define. "fastidious thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/fastidious/thesaurus/synonyms>