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Definition of resistant adjective from the Oxford Advanced American Dictionary

     

    resistant

     adjective
    adjective
    NAmE//rɪˈzɪstənt//
     
     
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  1. 1resistant (to something) not affected by something; able to resist something plants that are resistant to disease Mosquitoes are becoming resistant to insecticides.
  2. 2resistant (to something) opposing something and trying to stop it from happening Elderly people are not always resistant to change.
  3. 3-resistant (in adjectives) not damaged by the thing mentioned disease-resistant plants fire-resistant materials see also heat-resistant, water-resistant
See the Oxford Advanced Learner's Dictionary entry: resistant