[n] a tense of verbs used in describing action that is on-going
[adj] having the attributes of man as opposed to e.g. divine beings; "I'm only human"; "frail humanity"
[adj] not perfect; defective or inadequate; "had only an imperfect understanding of his responsibilities"; "imperfect mortals"; "drainage here is imperfect"
blemished, broken, continuous tense, corrupt, corrupted, defective, fallible, faulty, flawed, frail, human, imperfect tense, progressive, progressive tense, weak