100 entries under textbook topic. ×

9
perfect(adjective, good, great, sound, excellent)
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)
3
complete(adjective, excellent, perfect, model, flawless)
3
pure(adjective, splendid, flawless, faultless)
2
intact(flawless, faultless, perfection)
2
model(adjective, excellent, perfect, flawless, faultless)
2
peerless(adjective, pure, splendid, flawless, faultless)
2
sound(adjective, good, great, excellent, perfect)
2
stainless(adjective, pure, splendid, flawless, faultless)
2
unadulterated(flawless, faultless)
2
unmixed(adjective, flawless, faultless, unspoiled)
2
untainted(adjective, pure, splendid, flawless, faultless)
1
A-OK(adjective, good, great, sound, excellent)
1
accomplished(adjective, pure, splendid, flawless, faultless)
1
aces(adjective, pure, splendid, flawless, faultless)
1
adept(adjective, pure, splendid, flawless, faultless)
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APASmart Define. (2015). indefectible thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/indefectible/thesaurus/synonyms
ChicagoSmart Define. 2015. "indefectible thesaurus" https://smartdefine.org/indefectible/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, indefectible thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/indefectible/thesaurus/synonyms>.
MLASmart Define. "indefectible thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/indefectible/thesaurus/synonyms>