[Idiom] 'It's a shame'

[BobK]

If you want to introduce a note of actual shame, than you have to tweak the word a bit. Not 'it's a shame', but 'it's shameful'. And if someone does something that they 'should be ashamed of' but they're not, they can be called 'shameless' The same word can be applied to the thing done ('a shameless display of ...'), the attitude ('a shameless disregard for ...), or the person doing it ('a shameless cradle-snatcher').

b