resistant

relating to or conferring immunity (to disease or infection)

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"

disposed to or engaged in defiance of established authority

incapable of absorbing or mixing with; "a water-repellent fabric"; "plastic highly resistant to steam and water"