inexpert

He was too inexperienced and too inexpert to succeed.

他太缺乏经验，太不熟练，难以成功。

柯林斯例句

I'm inexpert at cooking.

我的烹调技术甚差.

《简明英汉词典》

He was inexpert in driving an automobile.

他开车不熟练.

辞典例句