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.
彼は彼女をけしかけたことにさえ気づかなかったほど鈍感だった。
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.
この三角形の鈍角は135度を測る。
translation
愚かな, 鈍角