Something that is imperfect has faults and is not exactly as you would like it to be.
例句
We live in an imperfect world...我们生活在一个并不完美的世界上。They have a huge selection of perfect, slightly imperfect and discontinued cookers, fridges and so on.他们有大量完好的、略有瑕疵的以及已停产的炊具、冰箱和其他货品可供选择。
N-SING
(动词的)未完成过去式,未完成过去时
In grammar, the imperfect or the imperfect tense of a verb is used to describe continuous situations or repeated actions in the past. Examples are 'I was reading' and 'they were eating'.
英英词典释义
Adverb
1. in an imperfect or faulty way;
"The lobe was imperfectly developed""Miss Bennet would not play at all amiss if she practiced more"- Jane Austen