The crossword solution for the term LOOK CREEPILY (AT) is LEER, which is a four-letter word. LEER is a verb that means to look at someone or something with a sly, often malicious expression. It can also be used to describe a glance that is intended to be seductive or suggestive. It is often used in a negative context, as it implies that the person looking is doing so in a way that is creepy or sinister.