you silly idiot!
to be a fool
you silly thing! you fool!
you stupid idiot!
he's so incredibly stupid!
to feel foolish
he's so kind, stupid
don't be stupid! don't be an idiot!
he's nobody's fool, he's far from stupid
he's far from stupid
to make somebody look the fool
he's enough of a fool
to call somebody stupid
it is stupid of him to do
besides being stupid he is also vulgar
he's not as stupid as people think (he is)
I was a fool to believe him
it is stupid of somebody to do
it was really stupid of you to accept, you were an idiot to accept
to call somebody stupid, a liar
I didn't think he was that stupid
it's one of two things, he's either absent-minded or he's stupid
to treat somebody like a child, a fool
he's not as stupid as he makes out
I didn't think he was that stupid, quick-tempered