(1):
(n.) The imperfect tense; or the form of a verb denoting the imperfect tense.
(2):
(a.) Not fulfilling its design; not realizing an ideal; not conformed to a standard or rule; not satisfying the taste or conscience; esthetically or morally defective.
(3):
(a.) Not perfect; not complete in all its parts; wanting a part; deective; deficient.
(4):
(v. t.) To make imperfect.
(5):
(a.) Wanting in some elementary organ that is essential to successful or normal activity.