Asymmetric smile is a term used to describe a smile that is not perfectly balanced on either side of the face. There are several synonyms that can be used to describe this type of smile including crooked smile, lopsided smile, and uneven smile. Other similar terms that may be used include one-sided smile, off-balance smile, and slanted smile. These terms all describe a smile that is not perfectly symmetrical, with one side of the mouth appearing higher or wider than the other. While some people may feel self-conscious about their asymmetric smile, others may embrace it as part of their unique facial features.