noun
stiff hair; coarse hair; bristle
Refers to hair that is thick, stiff, and rough to the touch, often on the body or of animals. Also used in biology for setae. Contrasts with 柔毛 (soft hair).
See also: 柔毛
彼はひげが剛毛で、剃るのが大変だ。
His beard is coarse, so shaving is a hassle.
このブラシは剛毛を使っているので、しっかり
This brush uses stiff bristles, so it can remove dirt effectively.