not quick or alert in perception, feeling, or intellect; not sensitive or observant; dull.

not sharp, acute, or pointed; blunt in form.

(of a leaf, petal, etc.) rounded at the extremity.

indistinctly felt or perceived, as pain or sound.

adjective

bright , intelligent , quick , smart , pointed , sharp

adjective

dense , dopey * , dull * , dumb , imperceptive , insensitive , opaque , slow on uptake , stolid , thick , uncomprehending , unintelligentnotes:acute is an angle of less than 90 degrees; obtuse is one of more than 90 degrees , round , roundednotes:acute is an angle of less than 90 degrees; obtuse is one of more than 90 degrees , blockheaded , doltish , hebetudinous , thickheaded , thick-witted , blunt , crass , dull , ignorant , stupid