IPA: //əbˈtjuːsər//
KK: /ɑbˈtjusɚ/
Not sharp or pointed; lacking in quickness of perception or intellect; dull.
His obtuser remarks showed that he didn't understand the situation well.
Comparative: more obtuse
Superlative: most obtuse
This word originates from Latin 'obtusus', meaning dull or blunt. The term 'obtuser' refers to something that is not sharp or is lacking in keenness.
Think of something that is 'dull' or 'blunt' — that's what 'obtuser' means.