Definition of “imperfect” - English Dictionary

“imperfect” in British English

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imperfectadjective

uk /ɪmˈpɜː.fekt/ us /ɪmˈpɝː.fekt/

imperfect adjective (NOT PERFECT)

C1 damaged, containing problems, 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 verb describes 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 /ɪmˈpɜː.fekt.li/ us /ɪmˈpɝː.fekt.li/

imperfectnoun [ S ]

uk /ɪmˈpɜː.fekt/ us /ɪmˈpɝː.fekt/

(Definition of “imperfect” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“imperfect” in American English

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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 engine broke because of a tiny imperfection in one of the parts.

(Definition of “imperfect” from the Cambridge Academic Content Dictionary © Cambridge University Press)

“imperfect” in Business English

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imperfectadjective

uk /ɪmˈpɜːfɪkt/ us

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)