This is not a time to manipulate or skulk into situations sideways, attempting to give a false impression of nonchalance.
I thought his nonchalance suggested that he failed to grasp the gravity of his situation.
Authentic beauty comes when something precious is treated with nonchalance—even disrespect, perhaps even a bit of abuse.
Yet his nonchalance, his serenity—something about him—irritated her.
“It is curious how Francis has these attacks of nonchalance,” muttered the General.
A few mornings later the same bird gave me another and more amusing exhibition of his nonchalance.
My fingers shook while with show of nonchalance I resumed adjusting the halters.
Joe was just sauntering through the gate, hands in pockets, nonchalance expressed in every motion.
"Oh, yes," assented Kirkwood, with a nonchalance not entirely unassumed.
A twitching face belied the nonchalance that he'd attempted to throw into the words.