D defs.my
Entry 1 sense Webster, 1913

Cavalierly

· Cav·a·lier·ly · IPA /kævəˈliːɚli/
01 adv. In a supercilious, disdainful, or haughty manner; arrogantly.
  1. 1.
    In a supercilious, disdainful, or haughty manner; arrogantly.