鈍 - dull, slow, foolish

to become blunt; to grow dull

dull (e.g. a knife); blunt

blunt weapon

thickheaded; insensitive; dull; thick-skinned

thickheaded; obtuse; stupid

becoming dull; slowing down

blockhead; dunce; dimwit; dolt; slowcoach; slowpoke

dull pain

local train; slow train

dull yellow

to become less capable

blunt (e.g. sword); dull