1. Not proper; not suitable; not fitted to the circumstances, design, or end; unfit; not becoming; incongruous; inappropriate; indecent; as, an improper medicine; improper thought, behavior, language, dress.
Follow'd his enemy king, and did him service,
Improper for a slave. --Shak.
And to their proper operation still,
Ascribe all Good; to their improper, Ill. --Pope.
2. Not peculiar or appropriate to individuals; general; common. [Obs.]
Not to be adorned with any art but such improper ones as nature is said to bestow, as singing and poetry. --J. Fletcher.
3. Not according to facts; inaccurate; erroneous.
Improper diphthong. See under Diphthong.
Improper feud, an original feud, not earned by military service. --Mozley & W.
Improper fraction. See under Fraction.
Im·prop·er, v. t. To appropriate; to limit. [Obs.]
He would in like manner improper and inclose the sunbeams to comfort the rich and not the poor. --Jewel.
adj 1: not suitable or right or appropriate; "slightly improper to
dine alone with a married man"; "improper medication"
2: not conforming to legality, moral law, or social convention;
"an unconventional marriage"; "improper banking practices"
[syn: unconventional, unlawful]
3: not appropriate for a purpose or occasion; "unsuitable
attire for the office"; "said all the wrong things" [syn: