面无人色

ashen-faced

face / side / surface / aspect / top / classifier for objects with flat surfaces such as drums, mirrors, flags etc

variant of 麵|面[mian4]

flour / noodles / (of food) soft (not crunchy) / (slang) (of a person) ineffectual / spineless

not to have / no / none / not / to lack / un- / -less

unmanned / uninhabited

person; people / CL:個|个[ge4],位[wei4]

color / CL:種|种[zhong3] / look / appearance / sex

(coll.) color / used in 色子[shai3 zi5]