Leers is a word that refers to a sly or lascivious look that is often perceived as derogatory or threatening. However, there are multiple synonyms for leers, such as sneers, smirks, grimaces, and snarls that can also convey similar meanings. These words are commonly used to describe someone who is being critical, pretentious or contemptuous. A sneer may reflect deliberate sarcasm, snickers may be a derisive indication that someone is unimpressed, while a smirk may be used to suggest someone is up to no good. In sum, whether one is trying to describe an annoying expression or an unpleasant attitude, these synonyms for leers can be quite useful.