1.  dismissive(s = adj.all) - 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'"
Derived form verb dismiss₁

2.  dismissive(s = adj.all) - stopping to associate with; "they took dismissive action after the third violation"
Derived form verb dismiss₅

dismissive, adj. tending to dismiss from consideration; disdainful.

Derivative:
dismissively adv. dismissiveness n.