dismissive
🇺🇸
/dɪsˈmɪsɪv/
🇬🇧
/dɪsˈmɪsɪv/
If you are dismissive, you show that you think something or someone is not important or not worth thinking about.
He had a dismissive attitude towards the new ideas presented in the meeting.
他對會議上提出的新想法有一種不屑一顧的態度。