witless
01
愚蠢的, 无知的
lacking intelligence or the ability to grasp and comprehend ideas
例子
Despite the detailed explanation, the witless expression on his face revealed a failure to grasp the concept.
尽管有详细的解释，他脸上愚蠢的表情表明未能理解这一概念。
02
极其愚蠢的, 完全无知的
(used as complement) to the utmost degree
