What does it mean when someone is nonchalant? Someone who is nonchalant is relaxed and calm, either because they do not care about something or because they are not worried about …

NONCHALANT definition: 1. behaving in a calm manner, often in a way that suggests you are not interested or do not care…. Learn more.

NONCHALANT definition: coolly unconcerned, indifferent, or unexcited; casual. See examples of nonchalant used in a sentence.

Definition of nonchalant adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Define nonchalant. nonchalant synonyms, nonchalant pronunciation, nonchalant translation, English dictionary definition of nonchalant. adj. Casually unconcerned or indifferent.

Dec 14, 2025 · Indifferent; unconcerned; behaving as if detached. He is far too nonchalant about such a serious matter.

If your friend is acting cool, unconcerned or in an indifferent manner, call him nonchalant — like when he saunters by a group of whispering, giggling girls and just nods and says, "Hey."

If you describe someone as nonchalant, you mean that they appear not to worry or care about things and that they seem very calm.

coolly unconcerned; indifferent; offhand. non•cha•lance, n. [uncountable] non•cha•lant•ly, adv. WordReference Random House Unabridged Dictionary of American English © 2025 …

NONCHALANT meaning: relaxed and calm in a way that shows that you do not care or are not worried about anything