The phrase "curls one's lip at" implies a facial expression that conveys disgust or disdain. Antonyms for this phrase might include "smiles warmly at," "laughs with delight," or "expresses admiration for." When someone "curls their lip" at something, they may be reacting to a person or thing they find unpleasant or unappealing. Therefore, antonyms for this phrase would involve positive reactions to people, situations, or objects. For example, one might "smile warmly" at a kind gesture, "laugh with delight" at a funny joke, or "express admiration for" someone's talent. By using these forms of language, individuals can communicate their feelings and reactions more accurately and positively.