- of an angle; between 90 and 180 degrees
- (of a leaf shape) rounded at the apex
- Pedants delight in being obtuse.
- When you think about it, it's all Kenny's fault for being so obtuse.
- Maximum permissible unguided length: the unguided length equivalent to a 1 in 9 (tgα = 0,11, α = 6o20’) obtuse crossing with a minimum 45 mm raised check rail and associated with a minimum wheel diameter of 330 mm on straight through routes.