adjectival noun or quasi-adjective, takes genitive case の, noun

  1. disused, unused.
  2. useless, wasteful, of no use.

Variations

Pronunciation Kanji Kana Is Common
不用 ふよう

Contained Kanji Breakdown

negative, non-, bad
 (4th, N4)
cliff (厂) variant
divining, fortune-telling, divination or katakana to radical (no. 25)
ボク うらな.う うらない (Kentei Pre-1)
utilize, business, service
ヨウ もち.いる たから (2nd, N4)
month, moon
つき ゲツ ガツ (1st, N5)
number one, line, rod radical (no. 2)
コン シ ジョ