imperfect Definition in the Cambridge English Dictionary
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Definition of “imperfect” - English Dictionary

Definition of "imperfect" - American English Dictionary

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imperfectadjective

 us   /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
noun [C/U]  us   /ˌɪm·pərˈfek·ʃən/
[C] Investigators ​suspect the ​enginebroke because of a ​tiny imperfection in one of the ​parts.
(Definition of imperfect from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "imperfect" - British English Dictionary

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imperfectadjective

uk   /ɪmˈpɜː.fekt/  us   /-ˈpɝː-/

imperfect adjective (NOT PERFECT)

C1 damaged, ​containingproblems, or not having something: We're ​living in an imperfect ​world. I ​explained as well as I was ​able, given my own imperfect ​understanding of the ​situation.

imperfect adjective (GRAMMAR)

specialized language The imperfect ​form of a ​verbdescribes an ​action in the past that was ​continuous or was not ​completed: In the ​sentence "He was ​hit by a ​car as he was ​crossing the ​road", the ​verb "​cross" is in the imperfect ​form.
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imperfectly
adverb uk   us   /-li/

imperfectnoun [S]

uk   /ɪmˈpɜː.fekt/  us   /-ˈpɝː-/
the imperfect specialized in some ​languages, the ​form of a ​verb that is used for an ​action that has not been ​completed in the past, used, for ​example, to refer to an ​action that was ​happening when it was ​suddenlyinterrupted, or to ​describe an ​existingsituation at the ​beginning of a ​story: In the ​sentence "He was ​hit by a ​car as he was ​crossing the ​road", the ​verb "​cross" is in the imperfect.
(Definition of imperfect from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

Definition of "imperfect" - Business English Dictionary

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imperfectadjective

uk   us   /ɪmˈpɜːfɪkt/
PRODUCTION damaged or not made correctly: Yolk ​products are made from the cracked, deformed, or otherwise imperfect eggs that don't make it past quality-control ​standards.
(Definition of imperfect from the Cambridge Business English Dictionary © Cambridge University Press)
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