sneer

n. a look on your face that shows you think someone is stupid or not important.

n. a facial expression characterized by a slight raising of one corner of the upper lip, conveying contempt or derision.

“He looked at my old car with a sneer on his face.”

“The critic watched the performance with a visible sneer, clearly unimpressed by the amateurish acting and poor lighting.”

n. a comment or sound that shows you look down on someone.

n. a contemptuous or mocking remark or tone of voice.

“She ignored the sneers of her classmates and kept working on her art.”

“Despite the sneers from the established scientific community, the young researcher continued to pursue her unconventional theory.”

Literary

v. to show that you have no respect for someone by the way you look or speak.

v. to show contempt by means of a facial expression or a derisive remark.

“It is not polite to sneer at other people's ideas.”

“The wealthy businessman sneered at the suggestion that he should donate a portion of his profits to the local library.”