shameless

/ˈʃeɪm·ləs/ adj

Definition

› being something you should be ashamed of: It was a shameless display of cowardice. › Shameless also means done without worrying about whether your actions are right or wrong: When the senator wanted something from a colleague, he first resorted to shameless flattery. shameless manipulation of the press

(Definition of shameless adj from the Cambridge Academic Content Dictionary © Cambridge University Press)