disapproval If you describe someone as shameless, you mean that they should be ashamed of their behaviour, which is unacceptable to other people. a shameless attempt to stifle democratic debate. + shamelessly shame·less·ly a shamelessly lazy week-long trip. not seeming to be ashamed of your bad behaviour although other people think you should be ashamed
Indicating want of modesty, or sensibility to disgrace; indecent; as, a shameless picture or poem