imperfect >> ɪmˈpəːfɪkt
Definition: [adjective] not perfect; faulty or incomplete.
Example: an imperfect grasp of English
Definition: [adjective] (of a tense) denoting a past action in progress but not completed at the time in question.
Definition: [adjective] (of a cadence) ending on the dominant chord.
Definition: [adjective] (of a gift, title, etc.) transferred without all the necessary conditions or requirements being met.
Definition: [noun] the imperfect tense.