plural of imperfection

(uncountable) Those qualities or features that are imperfect; the characteristic, state, or quality of being imperfect.

(grammar) The state or quality of being imperfective

the quality of not being perfectable; of being forever imperfect

simple past tense and past participle of imperfect

present participle of imperfect

Incapable of being made perfect.

The state or quality of being imperfectible.

(grammar) In an imperfective manner or context.

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.