adjectival noun or quasi-adjective, noun

  1. impossible, incapable (of doing), unable (to do).

noun

  1. incompetence, inability.
  2. impotence.
  3. Mathematics.having no solution (of an equation).

Variations

Pronunciation Kanji Kana Is Common
不能 ふのう

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)
ability, talent, skill
ノウ よし の (5th, N3)
a small worm, larvae of mosquitoes, empty
I, myself, katakana mu radical (no. 28)
シ ボウ ム (Kentei 1)
month, moon
つき ゲツ ガツ (1st, N5)
spoon, spoon or katakana hi radical (no. 21)
ヒ さじ (Kentei 1)