nonchalant

Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++non·cha·lant /ˈnɒnʃələnt $ ˌnɑːnʃəˈlɑːnt/ adjective DON'T CAREbehaving calmly and not seeming interested in anything or worried about anything 若无其事的；毫不在乎的 ‘Has he got a girlfriend?’ Jill asked, trying to sound nonchalant. “他有女朋友吗？”吉尔装出无所谓的样子问道。 —nonchalance noun [uncountable] —nonchalantly adverb He smiled nonchalantly. 他毫不在乎地微微一笑。

Examples from the Corpus

nonchalant• When Peter came in, she glanced up, trying to appear nonchalant.• All her energies were devoted to appearing in the eyes of others as nonchalant.• Hoomey stood up, trying to look nonchalant.• Perkins was nonchalant about being chosen.• The idea of staying in Oregon was beginning to appeal to her, but Roy was nonchalant about it.• Well, if he does, he's pretty nonchalant about it.• a nonchalant attitude• He looked nonchalant enough as he strolled along the Bayswater Road, but inwardly Creed was a mess of nerves.• "I'm sorry I'm so late. Have you been waiting long?" he asked. She gave a nonchalant shrug.• Just around the block, swinging his arms with nonchalant vehemence.• A previously nonchalant world media took notice.Origin nonchalant (1700-1800) French Old French nonchaloir “to pay no attention to”, from Latin calere “to be warm”