unjustifiable
adjective uk/ʌnˌdʒʌs.tɪˈfaɪ.ə.bəl/ us/ʌnˌdʒʌs.təˈfaɪ.ə.bəl/
不可接受的；无理的；无正当理由的
unacceptable and wrong because there is no good or fair reason for it
His behaviour was unjustifiable. 他的行为毫无道理。
unjustifiable expense 毫无道理的开销
Synonyms: indefensibleunwarranted
Opposite: justifiable