形容世故深，极其奸诈狡猾。《宋史·食货志上》：“老奸巨猾，匿身州县，舞法扰民。” 老：老练。奸：奸诈。巨：大，引申为非常。猾：狡猾。
老奸巨猾 [lǎo jiān jù huá]
1. old, crafty person; a crafty old scoundrel; a great [big] rascal; an old hand at trickery and deception; a past master of machination and manoeuvre; a sly old fish; a wily old fox; great [big] hypocrite; shrewd and crafty; up to all dodges指阅历很深，老于世故，而手段又极其奸诈狡猾者。
鲁迅《清明时节》：“于是后之论者又曰：阿瞒老奸巨猾，安知其尸实不在此七十二冢之内乎。”
Putin is being cunning
一度阿什利·扬在左路险些击溃了热刺，可老雷老奸巨猾(Putin is being cunning)，立时洞悉了自己的缺点，如果我们想要更多的玫瑰花，就必须种植更多的玫瑰树。
老奸巨猾的政客
a crafty politician
之前他还对着一群热情的青年创业者以及老奸巨猾的风投资本家和银行家发表了演说。
He was speaking before a very enthusiastic crowd of young entrepreneurs and older and wiser venture capitalists and bankers.
在泡沫派未曾离开我的手之前，昨天的听证会早已是闹剧一场：无能的委员会面对这几个老奸巨猾的人，只有听之任之。
Yesterday's select committee hearing was a farce before the foam ever left my fingers: a toothless panel confronting men too slippery to be caught between their gums.
你们想我当个老奸巨猾的律师——嘿，对了！
You wanted me to be a shrewd lawyer-- oh, yes!
唐玄宗的时期，当时宰相李林甫是一个老奸巨猾而又阴险毒辣的人，虽然他表面上装得十分忠厚和善，说话总是甜言蜜语，但是经常暗藏毒计，被他陷害的人还误认为他非常够义气。只要是唐玄宗信任的人，他都会去巴结、离间，背后进行打击与报复。
