unjustifiable

劍橋詞典

unacceptable and wrong because there is no good or fair reason for it
不可接受的；無(wú)理的；無(wú)正儅理由的
His behaviour was unjustifiable. 他的行爲(wèi)毫無(wú)道理。
unjustifiable expense 毫無(wú)道理的開(kāi)銷(xiāo) 返回 unjustifiable