obtuse
ob|tuse /əbtj'uːs, AM -t'uːs/
1 [ADJ]
Someone who is obtuse has difficulty understanding things, or makes no effort to understand them. (FORMAL)
I've really been very obtuse and stupid...
● obtuseness [N-UNCOUNT]
Naivety bordering on obtuseness helped sustain his faith.
2 [ADJ]
An obtuse angle is between 90° and 180°. Compare acute angle. (TECHNICAL)
1 [ADJ]
Someone who is obtuse has difficulty understanding things, or makes no effort to understand them. (FORMAL)
I've really been very obtuse and stupid...
● obtuseness [N-UNCOUNT]
Naivety bordering on obtuseness helped sustain his faith.
2 [ADJ]
An obtuse angle is between 90° and 180°. Compare acute angle. (TECHNICAL)