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1. Wanting in moral strength, courage, or will; having the attributes of man as opposed to e.g. divine beings
   - fallible, frail, weak
    
2. Not perfect; defective or inadequate
   "had only an imperfect understanding of his responsibilities"; "imperfect mortals"; "drainage here is imperfect"

1. A tense of verbs used in describing action that is on-going
   - progressive, progressive tense, imperfect tense, continuous tense

Derived forms: imperfects

See also: blemished, broken, corrupt, corrupted, defective, faulty, flawed, flawlessness, human, imperfectible, irregular, ne plus ultra, perfection

Type of: tense

Antonym: perfect

Encyclopedia: Imperfect