adjective, un·wis·er, un·wis·est.

not wise; foolish; imprudent; lacking in good sense or judgment: an unwise choice; an unwise man.

Nearby words

  1. unwind,
  2. unwinking,
  3. unwinnable,
  4. unwired,
  5. unwisdom,
  6. unwisely,
  7. unwish,
  8. unwished,
  9. unwished-for,
  10. unwit

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. 2019

Examples from the Web for unwise

British Dictionary definitions for unwise



lacking wisdom or prudence; foolish
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 unwise



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

Online Etymology Dictionary, © 2010 Douglas Harper