dismissive [dɪsˈmɪsɪv]
adjective
(disdainful) [+gesture, wave, attitude] despectivo; desdeñoso he said in a dismissive tone dijo como quien no quería tomar la cosa en serio; he was very dismissive about it parecía no tomar la cosa en serio; he is very dismissive of her capabilities siempre está infravalorando subestimando sus capacidades;or
