1. In a proud and domineering manner
   - cavalierly 
2. Without respect; in a disdainful manner
   - contemptuously, scornfully, contumeliously, opprobriously

See also: disdainful

• noncandidate
• noncarbonated
• noncausal
• noncausative
• nonce
• nonce word
• noncellular
• nonchalance
• nonchalant
• nonchalantly
• nonchristian
• nonchurchgoing
• noncitizen
• noncivilised
• noncivilized
• nonclassical
• noncoding DNA
• noncollapsable
• noncollapsible
• noncolumned
• noncom
• noncombatant
• noncombinative
• noncombining
• noncombustible