"dismissive" in the adjective sense
1. dismissive
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'"
2. dismissive
stopping to associate with
"they took dismissive action after the third violation"
Source: WordNet® (An amazing lexical database of English)
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