钝根 dùngēn slow-witted Origin Definitions Defs Strokes Stroke Words Sentences Sents 钝 鈍 dùn adjective stupid dull-witted; slow in reacting or understanding; clumsy根 gēn noun root (botany, family) the root of a plant; the part that grows underground to absorb nutrients; also refers to a child who carries on a family line