In a casual or curt style, without preparation or thought(adjective)
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Use "offhanded" in a sentence
""This kind of offhanded suggestion that we will somehow put you on a dragnet of suspected persons if you refuse to do what you can voluntarily decline to do is the nub of the problem here," Ms. Vonn said in an interview."
"I felt like this was the bullshit I'd been dealing with forever, this kind of offhanded, patronizing disrespect for the culture of hip-hop."
"You can see, though, with just one twist of the DNA, how the son can bring the father's literary talent to the outlaw country / redneck rock genre; he writes songs with the kind of offhanded quick wit and painfully bitter, cut-to-the-bone romantic remorse with which geniuses like John Hiatt, Kris Kristofferson, Steve Earl, Robert Earl Keene, and Rodney Crowell made their names."