Noviro
钝
Simplified 钝
Traditional 鈍
Pinyin dùn
Definition blunt; stupid
这把刀太钝，快换吧
Zhè bǎ dāo tài dùn, kuài huàn ba
This knife is too blunt, change it quickly
You might also see
迟钝
chí dùn
slow in one's reactions; sluggish (in movement or thought)
愚钝
yú dùn
stupid; slow-witted
钝角
dùn jiǎo
obtuse angle
鲁钝
lǔ dùn
stupid; slow on the uptake
驽钝
nú dùn
(literary) dull; slow-witted
钝器
dùn qì
blunt instrument (used as a weapon)
顽钝
wán dùn
blunt (instrument); stupid; thick-headed
钝翅苇莺
dùn chì wěi yīng
(bird species of China) blunt-winged warbler (Acrocephalus concinens)