Obtuse – Stupid or slow to understand
An object to chew (obtuse) was what the dog was looking for, but it was slow to understand that it was bad behaviour.
Examples of obtuse in a sentence
Perhaps I'm being obtuse, but what has all this got to do with me?
Jane was being as obtuse as possible, just to annoy John.
I don't think I'm obtuse just because I don't know algebra.