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obtuse adj 1 chiefly bot & zool said eg of a leaf or other flat part: blunt; not pointed or sharp; rounded at the tip. 2 a stupid and slow to understand; b 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. obtusely adverb. obtuseness noun. obtusity noun.
ETYMOLOGY: 16c: from Latin obtundere, obtusum to blunt, or beat against, from tundere to beat.
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