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[uhn-san-i-ter-ee] /ʌnˈsæn ɪˌtɛr i/
not sanitary; unhealthy or unhealthful; tending to harbor or spread disease:
unsanitary living conditions.
Also, insanitary.
Origin of unsanitary
First recorded in 1870-75; un-1 + sanitary
Related forms
unsanitarily, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for unsanitary
Contemporary Examples
Historical Examples
  • "But that would be unsanitary," piped a voice from the back of the room.

    City of Endless Night Milo Hastings
  • I am sure it is not necessary to tell you that such filth is unsanitary.

    The Dude Wrangler

    Caroline Lockhart
  • They were clothed in rags and their dwellings were both miserable and unsanitary.

    Patrician and Plebeian Thomas J. Wertenbaker
  • It was an unsanitary practice, but he had to admit that the patient was much improved.

    Bolden's Pets F. L. Wallace
  • The pipes and drains were unsanitary, and the air was bad to breathe.

  • He said they were smashing up things that were ugly and unsanitary.

    The A.E.F. Heywood Broun
British Dictionary definitions for unsanitary


/ʌnˈsænɪtərɪ; -trɪ/
not conducive to or promoting health; dirty or unhygienic
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for unsanitary

1871, from un- (1) "not" + sanitary.

Online Etymology Dictionary, © 2010 Douglas Harper
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unsanitary in Medicine

unsanitary un·san·i·tar·y (ŭn-sān'ĭ-těr'ē)
Not sanitary.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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