nonchalance

Then again, such keep-calm-and-carry-on nonchalance is vintage Bloomberg.

I thought his nonchalance suggested that he failed to grasp the gravity of his situation.

Her eighth-grade nonchalance was the sort of reaction the novelist William Gaddis might have admired.

This is not a time to manipulate or skulk into situations sideways, attempting to give a false impression of nonchalance.

The girls teetered in their too-high heels and tittered with excitement, while the boys feigned a cool nonchalance.

He was obviously beginning to be afraid; so Eric assumed an air of nonchalance, and played the part of protector.

It was amusing to see with what good humor and nonchalance the colored people and the soldiers regarded the conflagration.

Stella's nonchalance alarmed him more and more deeply as he began to look back at his own life and to survey his wasted years.

In professional nonchalance, no man exceeded our vice-admiral.

I popped away with great nonchalance, but husbanding my ammunition and popping only a single cracker at a time.