resistant

adjectives

relating to or conferring immunity (to disease or infection)
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able to tolerate environmental conditions or physiological stress
"the plant is tolerant of saltwater"; "these fish are quite tolerant as long as extremes of pH are avoided"; "the new hybrid is more resistant to drought"
impervious to being affected
"resistant to the effects of heat"; "resistant to persuasion"
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not admitting of passage or capable of being affected
"a material impervious to water"; "someone impervious to argument"
disposed to or engaged in defiance of established authority
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incapable of absorbing or mixing with
"a water-repellent fabric"; "plastic highly resistant to steam and water"
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