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See more synonyms for unwise on Thesaurus.com
adjective, un·wis·er, un·wis·est.
  1. not wise; foolish; imprudent; lacking in good sense or judgment: an unwise choice; an unwise man.
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Origin of unwise

before 900; Middle English; Old English unwīs. See un-1, wise1
Related formsun·wise·ly, adverbun·wise·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for unwisely


  1. lacking wisdom or prudence; foolish
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Derived Formsunwisely, adverbunwiseness, noun
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 unwisely


Old English unwislice; see unwise + -ly (2).

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Old English unwis, from un- (1) "not" + wise (adj.). Cf. Middle Dutch onwijs, Old High German unwis, German unweise, Old Norse uviss, Gothic unweis.

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Online Etymology Dictionary, © 2010 Douglas Harper