IPA: /əbˈtus/
KK: /əbˈtus/
Describing something that is blunt or rounded, or referring to a person or remark that is not very smart or sensitive.
His obtuse comments during the meeting frustrated everyone.
Obtuse → It is derived from the Latin word "obtusus" (meaning blunt or dull), which is the past participle of "obtundere" (meaning to beat against or to dull). The word "obtuse" refers to something that is not sharp or is dull in angle, as well as metaphorically describing a lack of quickness in understanding.
Think of something that is 'dull' or 'blunt' — that's why obtuse describes angles that are not sharp and can also refer to someone who is slow to understand.