Synonyms for Imperfect (same or very similar meaning)
WordNet sense 1 (a tense of verbs used in describing action that is on-going):
progressive, continuous tense, imperfect tense, progressive tense
WordNet sense 2 (having a defect):
defective, faulty
WordNet sense 3 (imperfectly spoken or written):
broken
WordNet sense 4 (having the attributes of man as opposed to e.g. divine beings):
fallible, frail, weak
WordNet sense 5 (having human form or attributes as opposed to those of animals or divine beings):
human
From the ODE community, based on WordNet
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