obtuse

Definitions

Annoyingly insensitive or slow to understand.

An angle greater than 90 degrees and less than 180 degrees.

Not sharp, pointed, or acute in manner or shape.

Examples

He was being intentionally obtuse, refusing to acknowledge the obvious flaws in his argument.

The geometry student struggled to identify the obtuse angle in the triangle.

Synonyms

dull slow-witted insensitive thick-headed stupid unintelligent dense

Antonyms

sharp intelligent astute perceptive clever quick-witted acute