offhanded

Adjective

• casually thoughtless or inconsiderate
  • an offhand manner
    
  • she treated most men with offhand contempt
    

• with little or no preparation or forethought
  • his ad-lib comments showed poor judgment
    
  • an extemporaneous piano recital
    
  • an extemporary lecture
    
  • an extempore skit
    
  • an impromptu speech
    
  • offhand excuses
    
  • trying to sound offhanded and reassuring
    
  • an off-the-cuff toast
    
  • a few unrehearsed comments
    

Adverb

• in a casually inconsiderate manner
  • replied offhand, his mind a million miles away
    
  • she threw him over offhandedly without even a Dear-John letter
    

• without previous thought or preparation
  • couldn't give the figures offhand
    
  • we decided offhand to go to Canada
    
  • she had made these remarks offhandedly
    

Related words

• Synonyms: 
  offhand , ad-lib , extemporaneous , extemporary , extempore , impromptu , off-the-cuff , unrehearsed , offhandedly