un·jus·ti·fi·a·ble
adjective/ˌʌnˌdʒʌstɪˈfaɪəbl/, /ˌʌnˈdʒʌstɪfaɪəbl/
/ˌʌnˌdʒʌstɪˈfaɪəbl/, /ˌʌnˈdʒʌstɪfaɪəbl/
- (of an action) impossible to excuse or accept because there is no good reason for it
不可原谅的；无法接受的；无正当理由的 - an unjustifiable delay
无理的拖延
- an unjustifiable delay