IPA: /dɪsˈmɪsɪv/
KK: /dɪsˈmɪsɪv/
Showing that you do not think something is important or worth considering.
Her dismissive attitude made it clear that she didn't care about his opinion.
Dismissive → It is formed from "dis-" (meaning apart) and "mittere" (meaning to send). The word describes an attitude of sending away or rejecting something or someone.
Think of someone who 'sends away' ('dis-') their thoughts or feelings ('mittere') about a topic — that's why dismissive means rejecting or showing a lack of interest.