obtuse Definition

obtuse
adj

1. chiefly bot & zool.
Said eg of a leaf or other flat part: blunt; not pointed or sharp; rounded at the tip.
2a. Stupid and slow to understand;

Thesaurus: stupid, thick, dumb, slow, unintelligent, uncomprehending, dense; Antonym: bright, sharp.
2b. Not very perceptive or sensitive.
3. geom.
Said of an angle: greater than 90° and less than 180°. Compare acute (adj 7)
4. Said of pain or a sound, etc: indistinctly felt or heard, etc; dull.

Derivative: obtusely
adverb

Derivative: obtuseness
noun

Derivative: obtusity
noun

Etymology: 16c: from Latin obtundere, obtusum to blunt, or beat against, from tundere to beat.