dismissive

adjectives

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'"
is derived from
is similar to
not having or showing interest
"an uninterested spectator"
stopping to associate with
"they took dismissive action after the third violation"
is derived from
is similar to
rejecting or tending to reject
"rejective or overcritical attitudes of disappointed parents"