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.
彼は会議で提示された新しいアイデアに対して軽蔑的な態度を持っていた。