Im*per"fect (?), a. [L. imperfectus: pref. im- not + perfectus perfect: cf. F imparfait, whence OE. imparfit. See Perfect.]


Not perfect; not complete in all its parts; wanting a part; defective; deficient.

Something he left imperfect in the state. Shak.

Why, then, your other senses grow imperfect. Shak.


Wanting in some elementary organ that is essential to successful or normal activity.

He . . . stammered like a child, or an amazed, imperfect person. Jer. Taylor.


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.

Nothing imperfect or deficient left Of all that he created. Milton.

Then say not man's imperfect, Heaven in fault; Say rather, man's as perfect as he ought. Pope.

Imperfect arch, an arch of less than a semicircle; a skew arch.
Imperfect cadence Mus., one not ending with the tonic, but with the dominant or some other chord; one not giving complete rest; a half close.
Imperfect consonances Mus., chords like the third and sixth, whose ratios are less simple than those of the fifth and forth.
Imperfect flower Bot., a flower wanting either stamens or pistils. Gray.
Imperfect interval Mus., one a semitone less than perfect; as, an imperfect fifth.
Imperfect number Math., a number either greater or less than the sum of its several divisors; in the former case, it is called also a defective number; in the latter, an abundant number.
Imperfect obligations Law, obligations as of charity or gratitude, which cannot be enforced by law.
Imperfect power Math., a number which can not be produced by taking any whole number or vulgar fraction, as a factor, the number of times indicated by the power; thus, 9 is a perfect square, but an imperfect cube.
Imperfect tense (Gram), a tense expressing past time and incomplete action.


© Webster 1913.

Im*per"fect (?), n. Gram.

The imperfect tense; or the form of a verb denoting the imperfect tense.


© Webster 1913.

Im*per"fect, v. t.

To make imperfect.



© Webster 1913.

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