cunning

悪賢い、ずるい、狡猾な
※カンニングの語源だけどカンニングの意味はない。カンニングを言いたいならcheating

Ex

• He is as cunning as a fox.
• Cunning people are clever at planning something.
• He’s a very cunning man.

Reference source

• https://jack8.at.webry.info/201103/article_1.html
• https://dictionary.cambridge.org/ja/dictionary/english/cunning