snide       
adjective uk/snaɪd/ us/snaɪd/
 (尤指话语)恶意的,挖苦的
(especially of remarks) containing unpleasant criticism that is not clearly stated
  She made one or two snide remarks about their house, which I thought was a bit unnecessary. 她对他们的房子挖苦了一两句,我认为实在没必要那样做。 
 Synonyms: sneering supercilious