obtuse
🇺🇸
/əbˈtuːs/
🇬🇧
/əbˈtjuːs/
adjective
R
not understanding something clearly, or not showing much sensitivity or awareness
He was so obtuse that he didn't even realize he had offended her.
他太遲鈍了，甚至沒有意識到自己冒犯了她。
R
an angle that is more than a right angle but less than a straight angle (between 90 and 180 degrees)
The obtuse angle of the triangle measures 135 degrees.
這個三角形的鈍角測量為135度。
translation
遲鈍的, 鈍角