American English

Definition of resistant adjective from the Oxford Advanced American Dictionary



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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