from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Lacking quickness of perception or intellect.
- adj. Characterized by a lack of intelligence or sensitivity: an obtuse remark.
- adj. Not distinctly felt: an obtuse pain.
- adj. Not sharp, pointed, or acute in form; blunt.
- adj. Having an obtuse angle: an obtuse triangle.
- adj. Botany. Having a blunt or rounded tip: an obtuse leaf.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Blunt; not sharp.
- adj. Intellectually dull or dim-witted.
- adj. Indirect or circuitous.
- adj. Of sound: deadened or muffled.
- adj. Of an angle: greater than 90 degrees but less than 180 degrees.
- adj. Of a triangle: with one obtuse angle.
from the GNU version of the Collaborative International Dictionary of English
- adj. Not pointed or acute; blunt; -- applied esp. to angles greater than a right angle, or containing more than ninety degrees.
- adj. Not having acute sensibility or perceptions; not alert, especially to the feelings of others; dull; stupid.
- adj. Dull; deadened.
from The Century Dictionary and Cyclopedia
- Blunt; not acute or pointed: applied to an angle, it denotes one that is larger than a right angle, or of more than 90°. See cuts under angle.
- In botany, blunt, or rounded at the extremity: as, an obtuse leaf, sepal, or petal.
- Dull; lacking in acuteness of sensibility: stupid: as, he is very obtuse; his perceptions are obtuse.
- Not shrill; obscure; dull: as, an obtuse sound.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. slow to learn or understand; lacking intellectual acuity
- adj. lacking in insight or discernment
- adj. (of a leaf shape) rounded at the apex
- adj. of an angle; between 90 and 180 degrees
Middle English, from Old French, from Latin obtūsus, past participle of obtundere, to blunt; see obtund.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin obtusus, past participle of obtundere ("to strike at or upon, beat, blunt, dull"), from ob ("upon") + tundere ("to strike"). (Wiktionary)