vi to show mirth awkwardly.
2. sneer ·noun the act of sneering.
3. sneer ·vt to treat with sneers; to affect or move by sneers.
4. sneer ·vi to inssinuate contempt by a covert expression; to speak derisively.
5. sneer ·vi to show contempt by turning up the nose, or by a particular facial expression.
6. sneer ·noun a smile, grin, or contortion of the face, indicative of contempt; an indirect expression or insinuation of contempt.
7. sneer ·vt to utter with a grimace or contemptuous expression; to utter with a sneer; to say sneeringly; as, to sneer fulsome lies at a person.