nonrefundable /ˌnɑːnrɪˈfʌndəbəl/ adjective /ˌnɑːnrɪˈfʌndəbəl/
adjective
Learner's definition of NONREFUNDABLE
1
of something you buy : not allowed to be returned in exchange for the money you paid(所购商品)不可退货的,不能退款的 2
of a payment : not to be returned(付款)不退的