(used of conduct or character) deserving or bringing disgrace or shame "a shameful display of cowardice" - black, disgraceful, ignominious, inglorious, opprobrious
Giving offence to moral sensibilities and injurious to reputation "the wicked rascally shameful conduct of the bankrupt" - disgraceful, scandalous, shocking
See also: dishonorable [US], dishonourable [Brit, Cdn], immoral, shamefully, shamefulness