Definition of unpleasant adjective from the Oxford Advanced American Dictionary

      

    unpleasant

     adjective
    adjective
    NAmE//ʌnˈplɛznt//
     
     
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  1. 1not pleasant or comfortable synonym disagreeable an unpleasant experience The minerals in the water made it unpleasant to drink.
  2. 2unpleasant (to somebody) not kind, friendly or polite He was very unpleasant to me. She said some very unpleasant things about you. opposite pleasant
unpleasantly
 
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adverb The drink is very sweet, but not unpleasantly so. He laughed unpleasantly.
See the Oxford Advanced Learner's Dictionary entry: unpleasant