The term 'DISAPPROVAL LOOK OF' can be summarized by three crossword solutions: FROWN (5 letters), LEER (4 letters), and OGLE (4 letters). A FROWN is a facial expression that conveys sadness, displeasure, or disapproval. A LEER is a sly, knowing look, often with a hint of sexual innuendo. Ogling is the act of looking at someone in a suggestive or lecherous manner. All three of these expressions are used to convey disapproval or disapproval of someone or something.