The term damning refers to something that is highly critical or negative, often indicating a strong disapproval or censure. It can also refer to an action or statement that has severe consequences or leads to ruin, failure or destruction. The term comes from the idea of being judged and found guilty in a religious context, which would result in damnation or punishment in hell. In modern usage, it is often used to describe something that is very unfavorable or negative, such as an opinion, evaluation, or assessment.