sneering
Concise Oxford English Dictionary © 2008 Oxford University Press:
sneer/snɪə(r)/
▶noun a contemptuous or mocking smile, remark, or tone. ▶verb smile or speak in a contemptuous or mocking manner.
– derivatives
sneerer noun,
sneering adjective,
sneeringly adverb.
sneerer noun,
sneering adjective,
sneeringly adverb.
– origin ME: prob. of imitative origin.
'sneering' also found in these Oxford entries:

