adj .
indifferent ; coolly unconcerned ; blase 무관심한 ; 냉담하고 관심이 없는 ; 무감동한

• Omar was acting awfully nonchalant for someone who had just been invited to dinner at the White House ; he was yawning and using a corner of the invitation to clean his nails.
  오마는 백악관의 만찬에 지금 막 초대받은 사람치고는 아주 무관심한 것처럼 행동했다 ; 그는 하품을 하면서 초대장의 귀퉁이로 손톱 소제를 하고 있었다.
• "I don't care that my car was stolen," Lucy said in a nonchalant voice. "Daddy will buy me a new one."
• Unconcerned with all the worry his disappearance had caused, the cat sat down and nonchalantly began to wash his face.
• 명사는 nonchalance