"dismissive" in the adjective sense
showing indifference or disregard
"a dismissive shrug"
"the firm is dismissive of the competitor's product"
"`chronic fatigue syndrome' was known by the dismissive term `housewife syndrome'"
stopping to associate with
"they took dismissive action after the third violation"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License