| imperfect(adjective, bad, poor, happy, flawed) | |
| incomplete(adjective, finished, wanting, unfinished) | |
| flawed(verb, adjective, smooth) | |
| wrong | |
| inaccurate(adjective, bad, poor, precise) | |
| misshapen | |
| sub-par | |
| not good | |
| faulty(adjective, incorrect, working) | |
| amiss | |
| inferior(adjective, bad, poor) | |
| pigeon-toed | |
| sad(adjective, decent, respectable, interesting, presentable) | |
| broken(adjective, bad, poor, unbroken) | |
| incorrect(adjective, false, careless) | |
| deficient(adjective, inadequate, imperfect) | |
| partial(adjective, uncertain) | |
| corrupt(adjective, bad, poor) | |
| sinful | |
| subpar |
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| APA | Smart Define. (2016). perfect thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/perfect/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "perfect thesaurus" https://smartdefine.org/perfect/thesaurus/antonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, perfect thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/perfect/thesaurus/antonyms>. |
| MLA | Smart Define. "perfect thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/perfect/thesaurus/antonyms> |