a simple-minded fellow, utterly out of touch with the modern world
lacking in common sense or intelligence
I'm not stupid, you know.
slow on the uptake (informal)
dead from the neck up
thick as mince (Scottish, informal)
stupid, slow, or insensitive
How could she have been so thick?
lacking intelligence or sense
clueless, witless and one-dimensional pop stars
addle-brained 的词库—— 柯林斯 英语词库