expressive of contempt; "curled his lip in a supercilious smile"; "spoke in a sneering jeering manner"; "makes many a sharp comparison but never a mean or snide one"
A snide comment or remark is one which criticizes someone in an unkind and often indirect way. He made a snide comment about her weight. if you say something snide, you say something unkind, often in a clever, indirect way snide remarks/comments