adjective
Not perfect,
(botany) Unisexual: having either male (with stamens) or female (with pistil) flowers, but not with both.
(taxonomy) Known or expected to be polyphyletic, as of a form taxon.
(grammar, of a tense or verb form) Representing a continuing or repeated action.
(obsolete) Lacking some elementary organ that is essential to successful or normal activity.
noun
Something having a minor flaw.
(grammar) A tense of verbs used in describing a past action that is incomplete or continuous.
verb
(transitive) to make imperfect