no-good I. \ˈ ̷ ̷| ̷ ̷\adjective Etymology: from the phrase no good : having no virtue, value, or chance of success : worthless, hopeless, useless < he was no-good at anything tedious > < it's no-good to argue > < see what that no-good dog has done > II. \ˈ ̷ ̷ˌ ̷ ̷\noun : a no-good person or thing