Definition: Unruinousness is a concept in philosophy that refers to an action or state of being that is considered morally reprehensible, unjustifiable, or unacceptable based on its consequences. It's often used as a way of criticizing actions that cause harm or injustice. The term comes from the Latin word "unruinere," which means "to destroy." In this sense, unruinousness can be seen as an act that has no positive consequences, and therefore is considered morally reprehensible.