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English definition of “imperfect”

imperfect

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