defensible
adj. 可辩解的,有正当理由的;可防御的,可守护的
例句
Is abortion morally defensible?
堕胎从道德上讲合乎情理吗?
《牛津词典》
Her reasons for acting are morally defensible.
她表演的理由道德上讲是合乎情理的。
《柯林斯英汉双解大词典》
The least defensible motive is vanity.
最牵强的理由就是虚荣心。