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

      

    untidy

     adjective
    adjective
    BrE BrE//ʌnˈtaɪdi//
     
    ; NAmE NAmE//ʌnˈtaɪdi//
     
    (untidier, untidiest)
     
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  1. 1  not neat or well arranged; in a state of confusion an untidy desk untidy hair
  2. 2  (of a person) not keeping things neat or well organized Why do you have to be so untidy? opposite tidy
  3. Extra examples Everything was dreadfully untidy. I’m afraid the house will have to stay untidy for now. I’ve become more untidy since I stopped going out to work. My son had left the studio very untidy. The books were piled an untidy heap. Try not to make the place untidy. Your hair is a little untidy.
See the Oxford Advanced American Dictionary entry: untidy