不知羞耻

to have no sense of shame / brazen

no; not so / (bound form) not; un-

not to know / unaware / unknowingly / fig. not to admit (defeat, hardships, tiredness etc)

to know / to be aware

(a feeling of) shame

shy / ashamed / shame / bashful / variant of 饈|馐[xiu1] / delicacies

shame / disgrace