disdainful
US /dɪsˈdeɪn.fəl/
UK /dɪsˈdeɪn.fəl/

1.
showing contempt or lack of respect
:
•
She gave him a disdainful look, as if he were beneath her notice.
•
His tone was disdainful when he spoke about their efforts.
showing contempt or lack of respect