Compounds of 不

• 不信
  (n,adj-no) unfaithfulness
  insincerity
  perfidy
  mistrust
  distrust
  discredit
  (P)
• 不審
  (adj-na,n) incomplete understanding
  doubt
  question
  distrust
  suspicion
  strangeness
  infidelity
  (P)
• 不振
  (adj-na,n) dullness
  depression
  slump
  stagnation
  (P)
• 不臣
  (n) disloyalty
  unfaithfulness
• 不仁
  (adj-na,n) heartlessness
  inhumanity
• 不尽
  (n) (arch) Very sincerely yours
• 不図
  (ateji) (adv) (uk) suddenly
  casually
  accidentally
  incidentally
  unexpectedly
  unintentionally
• 不粋
  (adj-na,n) no sense of refinement
  inelegant
  lacking in polish
  unromantic
  boorish
• 不随
  (n) paralysis
  palsy
• 不勢
  (n) few
  numerical inferiority
• 不整
  (adj-na,n) irregular
• 不正
  (adj-na,n) injustice
  unfairness
  iniquity
  impropriety
  irregularity
  dishonesty
  illegality
  fraud
  (P)
• 不精
  (adj-na,n) indolence
  laziness
  sloth
• 不斉
  (n,adj-no) irregularity
  unevenness
  asymmetry
  lack of uniformity
• 不宣
  (n) Very sincerely yours
• 不戦
  (n,adj-no) (1) anti-war
  war renunciation
  (2) sumo bout cancelled due to absence of one of the wrestlers
  (P)
• 不善
  (n) evil
  sin
  vice
  mischief
• 不全
  (adj-na,n,adj-no) partial
  incomplete
  imperfect
  (P)
• 不束
  (adj-na,n) rude
  inexperienced
  stupid
  incompetent
• 不測
  (n,adj-no) unexpected
  unforeseen
  accidental
• 不足
  (adj-na,n,vs) insufficiency
  shortage
  deficiency
  lack
  dearth
  (P)
• 不遜
  (adj-na,n) arrogance
  insolence
  disrespect
• 不退
  (n) determination
• 不達
  (n) nondelivery
• 不断
  (n-t,adj-na,adj-no) (1) constancy
  persistency
  continuity
  (adj-na) (2) indecisive
  (P)
• 不知
  (n) (1) something unknown
  (2) ignorance
  foolishness
• 不智
  (n) (1) ignorance
  foolishness
• 不着
  (n) nonarrival
  nondelivery
• 不仲
  (adj-na,n) discord
  (P)
• 不忠
  (adj-na,n) disloyalty
  infidelity