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. 2 resistant (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