Obtuse – Stupid or slow to understand

To remember the definition of the word obtuse, use the following mnemonic:

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.