#1 imperfect s. [fallible, frail, weak] wanting in moral strength, courage, or will; having the attributes of man as opposed to e.g. divine beings; "I'm only a fallible human"; "frail humanity". wn
#2 imperfect n. [progressive, progressive tense, imperfect tense, continuous tense] a tense of verbs used in describing action that is on-going. wn
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