obtuse

US /ɑːbˈtuːs/
UK /ɑːbˈtuːs/
"obtuse" picture
1.

迟钝的, 愚笨的, 不敏感的

annoyingly insensitive or slow to understand

:
He was too obtuse to grasp the subtle humor of the situation.
他太迟钝了,无法领会那种微妙的幽默。
Don't be so obtuse; the answer is obvious!
别这么迟钝;答案很明显!
2.

钝角的

(of an angle) greater than 90° and less than 180°

:
An obtuse angle is wider than a right angle.
钝角比直角宽。
The triangle had one obtuse angle and two acute angles.
这个三角形有一个钝角和两个锐角。