鈍 dull

金 (gold) + 屯 (bent dagger)

★★☆☆☆

12 strokes

Onyomi

DON	DON Quixote's spear got dull from stabbing windmills all day.

Mnemonic

Your dagger is so dull it gets bent even trying to cut soft gold.

Kunyomi

にぶ*い	dull like not sharp (not dull as in dumb) ★★★☆☆

Jukugo

鈍感(どんかん) な

dimwitted ★★☆☆☆
鈍 (dull) + 感 (feeling) = 鈍感 (dimwitted)

dimwitted, insensitive, thick-headed, sarcasm-proof

Lookalikes

	Meaning	Hint	Radical
鈍	dull	GOLD	金
純	epitome	STRING	糸

GOLD is a dull metal (compared to steel), but STRING is the epitome of knitting.