我从未对他的狡猾和奸诈掉以轻心。用英语怎么说？

我从未对他的狡猾和奸诈掉以轻心。

His cunning and guile were not attributes I would ever underestimate.

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

cunning

adj. 狡猾的，奸诈的，灵巧的；n. 狡猾，诡诈，狡黠；

例句
This crew of killers and life-wreckers are headed by the mad but cunning Nino Brown.
这个残害生命的杀人团伙以疯狂而狡猾的尼诺·布朗为首。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

guile

n. 奸猾，狡诈，背信弃义，欺骗；

例句
His cunning and guile were not attributes I would ever underestimate...
我从未对他的狡猾和奸诈掉以轻心。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

not

adv. 不，[用以表示否定、否认、拒绝、禁止等]不是，几乎不，未必，没有[用于否定后面的词或短语]；

例句
It became very clear that the incident was not just an aberration, it was not just a single incident.
事实已经很清楚，这件事不是偶发的，它并不是一起孤立的事件。

attributes

n. 属性，特性，特质，属性（ attribute的名词复数 ），（人或物的）特征，价值，[语法学]定语；v. 认为…是（ attribute的第三人称单数 ），把…归于，把…品质归于某人，认为某事[物]属于某人[物]；

例句
His cunning and guile were not attributes I would ever underestimate...
我从未对他的狡猾和奸诈掉以轻心。

would

aux. 将，将要，愿意，会，打算，大概；v. (will 的过去式，用于转述)将；

例句
I would love to go abroad this year, perhaps to the South of France.
我今年很想出国，可能是去法国南部。

ever

adv. 永远，曾经，这以前，究竟，到底，可能；

例句
No one ever questioned her capability.
从来没有人质疑她的能力。

underestimate

vt. 低估，对…估计不足，看轻，把…的价值估计过低；n. 低估，估计不足，过低评价，过低估价，轻视；

例句
Classically, overweight people underestimate the volume of food that they consume.
一般来说，超重的人往往低估自己摄入食物的量。