maladaptive
adjective uk/ˌmæl.əˈdæp.tɪv/ us/ˌmæl.əˈdæp.tɪv/
biology specialized不适应的;没有适应能力的
not having the ability to change to suit different conditions
biology specialized（对某种情况）适应不良的
having an adaptation (= changed feature) that is not suitable for particular conditions