6
excellent(adjective, pure, flawless, faultless, skillful)
6
ideal(adjective, good, great, sound, excellent)
6
indefectible(adjective, good, pure, splendid, flawless)
6
undefiled
6
unerring(adjective, perfect, flawless, faultless, textbook)
6
virtuous(adjective, good, clear, honest, perfect)
5
chaste(adjective, clear, clean, honest, pure)
5
complete(adjective, perfect, superb, extreme, utter)
5
accurate(adjective, correct, right, clean, exact)
5
appealing(adjective, lovely)
5
artful(adjective, lovely)
5
charming(adjective, lovely)
5
cunning(adjective, lovely)
5
cutesy(adjective, lovely)
5
delightful(adjective, lovely)
5
engaging(adjective, lovely)
5
errorless(adjective, correct, bright, clean, delicate)
5
exact(adjective, right, perfect, precise, flawless)
5
lovable(adjective, lovely)
5
matchless(adjective, good, great, sound, excellent)
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APASmart Define. (2016). impeccable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/impeccable/thesaurus/synonyms
ChicagoSmart Define. 2016. "impeccable thesaurus" https://smartdefine.org/impeccable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, impeccable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/impeccable/thesaurus/synonyms>.
MLASmart Define. "impeccable thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/impeccable/thesaurus/synonyms>