Compounds of 不

• 不具
  (n,adj-no) (1) (sens) deformity
  distortion
  disability
  cripple
  (2) word written at the end of a letter
• 不虞
  (n) emergency
• 不遇
  (adj-na,n) misfortune
  bad luck
  obscurity
• 不屈
  (n,adj-no,adj-na) persistence
  fortitude
  indomitability
  (P)
• 不敬
  (adj-na,n) disrespect
  irreverence
  impiety
  blasphemy
  profanity
• 不潔
  (adj-na,n) unclean
  dirty
  filthy
  impure
  (P)
• 不言
  (n) silence
• 不語
  (n) silence
• 不孝
  (adj-na,n) (1) undutifulness to one's parents
  lack of filial piety
  (2) (arch) (the crime of) cursing one's parents
  (3) (arch) disowning one's child
• 不孝
  (adj-na,n) (1) undutifulness to one's parents
  lack of filial piety
  (P)
• 不幸
  (adj-na,n) unhappiness
  sorrow
  misfortune
  disaster
  accident
  death
  (P)
• 不才
  (n) lack of talent
  incompetency
• 不在
  (n,adj-no) absence
  (P)
• 不作
  (n) poor crop
  crop failure
  (P)
• 不参
  (n,vs) absence
  nonattendance
  nonappearance
• 不死
  (n,adj-no) (1) immortality
  eternal life
  (2) undeath
  undead
• 不時
  (n,adj-no) emergency
  unexpectedness
• 不次
  (adj-na,n) irregularity
• 不治
  (n,adj-no) (sens) incurability
• 不治
  (n,adj-no) (sens) incurability
• 不識
  (n) the unknown
• 不悉
  (n) (arch) Very Sincerely Yours
• 不実
  (adj-na,n,adj-no) perfidiousness
  faithlessness
  inconstancy
  insincerity
  falsehood
• 不純
  (adj-na,n) impurity
  adulteration
  dishonesty
  irregularity
  (P)
• 不順
  (adj-na,n) irregularity
  unseasonableness
  (P)
• 不承
  (adj-na,n) dissent
  disagreement
  disapproval
  objection
  refusal
• 不祥
  (adj-na,n) disgraceful
  inauspicious
  ill-omened
  ominous
  scandalous
• 不肖
  (n,adj-no,adj-na) (1) unworthiness of one's father (or master)
  (2) incompetence
  foolishness
  (3) misfortune
  unluckiness
  (n) (4) (hum) I
  me
  (P)
• 不詳
  (adj-na,n,adj-no) unknown
  unidentified
  unspecified
  (P)
• 不浄
  (adj-na,n,adj-no) (1) uncleanliness
  dirtiness
  impurity
  filthiness
  defilement
  (2) (arch) menses
  (3) (arch) feces (faeces)
  (4) bathroom
  (P)