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