Definition of wise adjective from the Oxford Advanced Learner's Dictionary

      

    wise

     adjective
    adjective
    BrE BrE//waɪz//
     
    ; NAmE NAmE//waɪz//
     
    (wiser, wisest) Clever, Old age
     
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  1. 1  (of people) able to make sensible decisions and give good advice because of the experience and knowledge that you have a wise old man I'm older and wiser after ten years in the business. See related entries: Clever, Old age
  2. 2  (of actions and behaviour) sensible; based on good judgement synonym prudent a wise decision It was very wise to leave when you did. The wisest course of action is just to say nothing. I was grateful for her wise counsel.
  3. Word Origin Old English wīs, of Germanic origin; related to Dutch wijs and German weise.Extra examples It was not considered wise to move her to another hospital. He was known to be a wise and gentle ruler. He was too wise and experienced to try to escape. I’m older and wiser after ten years in the business. It was very wise of you to leave when you did. Locking your car doors is always a wise precaution.Idioms
      be none the wiser, not be any the wiser
       
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    1. 1to not understand something, even after it has been explained to you I've read the instructions, but I'm still none the wiser.
    2. 2to not know or find out about something bad that somebody has done If you put the money back, no one will be any the wiser.
    be wise after the event
     
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    (often disapproving) to understand something, or realize what you should have done, only after something has happened
    be/get wise to somebody/something
     
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    (informal) to become aware that somebody is being dishonest He thought he could fool me but I got wise to him.
    put somebody wise (to something)
     
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    (informal) to inform somebody about something
See the Oxford Advanced American Dictionary entry: wise