He was 'indiscreet' about his love affairs. [=he told people about his love affairs when he should have kept them secret]
Should I ask you how you got that bruise, or would that be 'indiscreet'? [=(more commonly) 'impolite, rude']
He spoke 'indiscreetly' about his love affairs.
(..) l heard. You had a microphone. l had headphones. You expect me to tell the truth about my life... to the most indiscreet man in England ? Uh, excuse me. lt's your mother on the phone. Will you tell her l'll ring her back ? (..)1999 Notting Hill