Compounds of 無

• 無軌道
  (adj-na,n) (1) trackless
  (2) reckless
  dissipated
• 無技巧
  (adj-na,n) artless
  simple
• 無義道
  (n,adj-na) brutality
  inhumanity
• 無弓類
  (n) anapsid
• 無許可
  (adj-no) (1) unauthorized
  without permission
  unapproved
  (n) (2) lack of permission
  absence of authorization
• 無競争
  (n) lacking opposition or competition
• 無教育
  (adj-na,n) uneducated
• 無教会
  (adj-no) non-denominational
  churchless
• 無響室
  (n) anechoic room
• 無菌法
  (n) asepsis
• 無計画
  (adj-na,n) lacking a plan
  haphazard
• 無警告
  (n) without warning or notice
• 無警察
  (n) (the state of) anarchy
• 無欠勤
  (n) without missing (a day of) work
• 無欠席
  (n) perfect attendance
• 無月経
  (n) amenorrhea
  amenorrhoea
• 無原罪
  (n,adj-no) immaculacy (i.e. freedom from original sin)
  immaculateness
• 無言劇
  (n) pantomime
• 無言症
  (n) mutism
• 無限小
  (adj-na,n) (math) infinitesimal
• 無限大
  (adj-na,n) infinity
• 無公害
  (n,adj-no) unpolluted
  non-polluting
• 無効票
  (n) faulty ballot
• 無垢材
  (n) solid wood (as opposed to veneer)
  natural wood
• 無考え
  (adj-na,n) thoughtless
  heedless
  rash
• 無降水
  (n) lack of rainfall
  drought
• 無国籍
  (n) statelessness
• 無骨者
  (n) boor
  rustic
• 無差別
  (n) (1) indiscrimination
  without discrimination
  (adj-na) (2) indiscriminate
  (P)
• 無沙汰
  (n) not writing or contacting for a while
  neglecting (failing) to write (call, visit, etc.)
  long silence