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See more synonyms for inadvisable on Thesaurus.com
  1. not advisable; inexpedient; unwise.
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Origin of inadvisable

First recorded in 1865–70; in-3 + advisable
Related formsin·ad·vis·a·bil·i·ty, in·ad·vis·a·ble·ness, nounin·ad·vis·a·bly, adverb


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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Examples from the Web for inadvisability

Historical Examples

  • She thought the roses lovely, and recognized the inadvisability of thanking this teacher, since he had not enclosed his card.

    By the Light of the Soul

    Mary E. Wilkins Freeman

  • As the Philippines are “land poor,” the inadvisability of such a policy would seem to be sufficiently evident.

  • A single experiment taught me the inadvisability of leaving the camera exposed for any length of time to these conditions.

  • Is there a right and a wrong in the matter, an advisability or an inadvisability, an expediency or an inexpediency?

    At Large

    Arthur Christopher Benson

  • Otis ordered Lawton to withdraw, and Lawton, convinced of the inadvisability of the measure, objected.

British Dictionary definitions for inadvisability


  1. not advisable; not recommended
  2. unwise; imprudent
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Derived Formsinadvisability or inadvisableness, nouninadvisably, adverb
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

Word Origin and History for inadvisability


1839, from inadvisable + -ity.

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1819, from in- (1) "not, opposite of" + advisable.

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Online Etymology Dictionary, © 2010 Douglas Harper