9
perfect(adjective, good, great, sound, excellent)
8
faultless(adjective, good, pure, splendid, flawless)
8
immaculate(adjective, pure, splendid, flawless, faultless)
7
impeccable(adjective, good, pure, splendid, flawless)
6
flawless(adjective, good, great, excellent, perfect)
5
consummate(adjective, good, great, excellent, perfect)
5
ideal(adjective, good, great, sound, excellent)
5
unflawed(adjective, good, perfect, flawless, faultless)
4
absolute(adjective, good, great, excellent, perfect)
4
spotless(adjective, pure, splendid, flawless, faultless)
4
unblemished(adjective, pure, splendid, flawless, faultless)
3
complete(adjective, excellent, perfect, model, flawless)
3
finished(adjective, pure, splendid, flawless, faultless)
3
irreproachable
3
pure(adjective, splendid, flawless, faultless, textbook)
2
harmless
2
indefective
2
indeficient
2
intact(flawless, faultless, textbook, perfection)
2
model(adjective, excellent, perfect, flawless, faultless)
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APASmart Define. (2015). indefectible thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/indefectible/thesaurus/synonyms
ChicagoSmart Define. 2015. "indefectible thesaurus" https://smartdefine.org/indefectible/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, indefectible thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/indefectible/thesaurus/synonyms>.
MLASmart Define. "indefectible thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/indefectible/thesaurus/synonyms>