An obtuse angle.
An example of obtuse is someone who listens to a joke but doesn't understand the punchline.
An example of obtuse is a child’s pair of scissors.
An example of obtuse is pain that is throughout a part of the body.
An obtuse pain.
Origin of obtuse
- Middle English from Old French from Latin obtūsus past participle of obtundere to blunt obtund
From American Heritage Dictionary of the English Language, 5th Edition