cleverer , cleverest
Someone who is clever is intelligent and able to understand things easily or plan things well.
He's a very clever man.
他是个很聪明的人。
A clever idea, book, or invention is extremely effective and shows the skill of the people involved.
ingenious
It is a clever and gripping novel, yet something is missing from its heart.
这是一部构思巧妙、引人入胜的小说,不过核心部分还缺少点什么。