鈍

ドン

にぶ.い、にぶ.る、にぶ-、なま.る、なまく.ら

鈍, 金, 屯, 丿, 屮, 凵

金

dull, slow, foolish, blunt

鈍い(のろい): (1) dull (e.g. a knife); blunt (2) thickheaded; obtuse; stupid (3) dull (sound); dim (light) (4) slow; sluggish; inert; lethargic (5) indulgent (esp. to the opposite sex); doting
鈍感(どんかん): thickheadedness; stolidity; insensitivity
鈍る(にぶる): to become less capable; to grow dull; to become blunt; to weaken