bloodless
adjective uk/ˈblʌd.ləs/ us/ˈblʌd.ləs/
(NOT VIOLENT)
（军事行动）不流血的;兵不血刃的
A bloodless military operation involves no deaths.
The rebel soldiers seized power in a bloodless coup. 叛军在一次政变中兵不血刃地夺取了政权。
(PALE)
（脸或皮肤）无血色的，苍白的
used to describe a face or skin that is extremely pale
His face was thin and bloodless. 他的脸瘦削而苍白。
(NO EMOTION)
无感情的
without emotion