oxymoron

1. N-COUNT If you describe a phrase as an oxymoron, you mean that what it refers to combines two opposite qualities or ideas and therefore seems impossible. 矛盾脩飾法[技術]

This has made many Americans conclude that business ethics is an oxymoron. 這使許多美國人將商業道德歸爲一種矛盾脩飾法。