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Meaning of nonchalant

non•cha•lant

Pronunciation: (non"shu-länt', non'shu-länt", -lunt), [key]
— adj.
  1. coolly unconcerned, indifferent, or unexcited; casual: His nonchalant manner infuriated me.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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