obtuse

/äb-ˈtüs/

Middle English, from Latin obtusus blunt, dull, from past participle of obtundere to beat against, blunt, from ob- against + tundere to beat

adjective

  1. not pointed or acute : blunt

  2. exceeding 90 degrees but less than 180 degrees

  3. having an obtuse angle

dull blunt obtuse mean not sharp, keen, or acute. dull suggests a lack or loss of keenness, zest, or pungency. blunt suggests an inherent lack of sharpness or quickness of feeling or perception.