13
imperfect
10
defective(adjective, broken, working)
8
faulty
7
flawed(verb, adjective)
7
damaged
7
deficient(adjective, inadequate, imperfect)
7
not good
6
disfigured
6
sad(adjective, decent, respectable, interesting, presentable)
5
bad
5
incorrect
5
wrong
4
blemished
4
inaccurate
3
incomplete
3
marred
3
misshapen
3
reproachable
3
wretched
2
amiss
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APASmart Define. (2016). flawless thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/flawless/thesaurus/antonyms
ChicagoSmart Define. 2016. "flawless thesaurus" https://smartdefine.org/flawless/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, flawless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/flawless/thesaurus/antonyms>.
MLASmart Define. "flawless thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/flawless/thesaurus/antonyms>