Compounds of 不

• 不文法
  (n) unwritten law
  common law
• 不文明
  (n) indistinct
  obscure
• 不文律
  (n) unwritten law
  unwritten rule
  common law
  (P)
• 不平等
  (adj-na,n) inequality
  unequal (treaties)
  unfair
  (P)
• 不変性
  (n) (math) invariance
• 不変量
  (n) constant
  invariable
• 不勉強
  (n) idleness
  lack of application
  lazy study habits
• 不飽和
  (n) unsaturated
• 不本意
  (adj-na,n) reluctance
  unwilling
  (P)
• 不満足
  (n) dissatisfaction
  displeasure
  discontent
• 不味い
  (adj-i) (1) (uk) unappetising
  unappetizing
  unpleasant (taste, appearance, situation)
  (2) unskillful
  unskilful
  bungling
  clumsy
  (3) ugly
  homely
  plain
  unattractive
  (4) awkward
  untimely
  inopportune
  unfavorable
  unwise
  (P)
• 不稔性
  (n) infertility (esp. of plants)
• 不眠症
  (n) sleeplessness
  insomnia
  wakefulness
  (P)
• 不名数
  (n) abstract number
• 不名誉
  (adj-na,n) dishonor
  dishonour
  disgrace
  shame
• 不明確
  (adj-na,n) inaccurate
  indistinct
  imprecise
  unclear
  indecisive
• 不明瞭
  (adj-na,n) dimness
  obscurity
  indistinctness
  unclear
  unintelligible
• 不明朗
  (adj-na,n) (1) gloominess
  gloom
  (2) questionable
  unfair
  underhand
• 不面目
  (adj-na,n) shame
  disgrace
• 不面目
  (adj-na,n) shame
  disgrace
• 不夜城
  (n) nightless gay quarters
  nightless city
• 不愉快
  (adj-na,n) discomfort
  unpleasantness
  disagreeableness
  unhappiness
  (P)
• 不溶性
  (n) insolubility
• 不用意
  (adj-na,n) unpreparedness
  carelessness
  (P)
• 不用心
  (adj-na,n) insecurity
  carelessness
• 不用心
  (adj-na,n) insecurity
  carelessness
• 不用品
  (n) disused article
• 不要論
  (n) argument that something is unnecessary
  opposition
• 不養生
  (adj-na,n) neglect of health
  intemperance
• 不利益
  (adj-na,n) disadvantage
  handicap
  drawback
  inadvisability
  inexpediency
  (P)