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English definition of “imperfect”

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imperfect

adjective  /ɪmˈpɜr·fɪkt/ us  
not perfect or not complete: Our rule of law is still imperfect, but it’s better than having no laws at all.
imperfection
noun [C/U]  /ˌɪm·pərˈfek·ʃən/ us  
[C] Investigators suspect the engine broke because of a tiny imperfection in one of the parts.
(Definition of imperfect from the Cambridge Academic Content Dictionary © Cambridge University Press)
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