Definition of "casualness" [cas•u•al•ness]

• The state of being casual. (noun)
• A relaxed and nonchalant attitude. (noun)

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• "A certain casualness, almost freedom, in the way the prisoners (except, of course, the ones in the segregation sector) walk around in the hallways, talking, pausing if they want, and in the way they are dressed."
• "Whether that muddle comes from Mr. Emmerich, I don’t know, but the casting of David Thewlis, languid romantic werewolf, as old, fat, gouty Burghley suggests a certain casualness about mere historicity."
• "Her casualness was a way to diminish her concerns about my reaction or, perhaps, to encourage a nonchalant response from me."