The term LOOK UNHAPPY can be summarized by two crossword solutions: FROWN and SNEER. Frowning is a facial expression that is usually associated with sadness or displeasure, and involves the corners of the mouth being turned down. Sneering is a facial expression that conveys contempt or scorn, and involves curling one's lip in a way that suggests disdain. Both expressions are used to convey unhappiness or dissatisfaction.