What does "improper" mean?

Improper: 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.

Additional senses

  1. 2.Not according to facts; inaccurate; erroneous. Improper diphthong. See under Diphthong. -- Improper feud, an originalfeud, not earned by military service. Mozley & W. -- Improper fraction. See under Fraction.
  2. 3.To appropriate; to limit. [Obs.] He would in like manner improper and inclose the sunbeams to comfort the rich and not the poor. Jewel.

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