The Collaborative International Dictionary
Unproper
Unproper \Un*prop"er\, a. Not proper or peculiar; improper. [Obs.] -- Un*prop"er*ly, adv. [Obs.]
Wiktionary
unproper
a. 1 (context obsolete English) improper, not according with fact or reason; wrong, irregular. (14th-17th c.) 2 (context now rare English) improper, not suited for its use or application; inappropriate. (from 16th c.) 3 (context obsolete English) Not belonging to a given person; someone else's. (17th c.) 4 (context rare English) improper, not according with good standards of behaviour; indecent, indecorous. (from 19th c.)
Usage examples of "unproper".
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