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obtuse

ob·tuse [ əb tss, ob tss ]


adjective 
Definition:
 
1. slow to understand: slow to understand or perceive something

2. mathematics between 90º and 180º: describes an angle greater than 90º and less than 180º

3. mathematics with internal angle greater than 90º: describes a triangle with one internal angle greater than 90º

4. blunt: not sharp or pointed

5. botany with rounded or blunt tip: describes a leaf that has a rounded or blunt tip

[Early 16th century. < Latin obtusus "blunted," past participle of obtundere (see obtund)]

ob·tuse·ly adverb
ob·tuse·ness noun
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