IPA: /ˌkæv.əˈlɪr.ɪ.zəm/
KK: /ˌkæv.əˈlɪr.ɪ.zəm/
The behavior or attitude of being carefree and dismissive, often showing a lack of concern for important matters.
His cavalierism towards the project led to many mistakes and oversights.
Cavalierism is derived from "cavalier" (from Old French *cavalier*, meaning horseman or knight) and the suffix "-ism" (indicating a practice or philosophy). The term refers to a certain attitude of being dismissive or nonchalant, often associated with a knightly or gallant demeanor that overlooks serious matters.
Think of a 'cavalier' as a knight who might be too carefree or dismissive about important issues, and the '-ism' shows it's a way of thinking or behaving.