Compounds of 無

• 無害
  (adj-na,n,adj-no) harmlessness
  (P)
• 無碍
  (adj-na,n) free from obstacles
• 無蓋
  (n,adj-no) open
  uncovered
• 無学
  (adj-na,n,adj-no) illiteracy
• 無冠
  (n,adj-no) uncrowned
• 無官
  (n) being out of office
  lacking a title
• 無期
  (n) indefinite
  (P)
• 無機
  (n,adj-no) inorganic
• 無季
  (n,adj-no) (haiku) lacking seasonal references
• 無休
  (n) without a holiday
  nonstop
  (P)
• 無窮
  (adj-na,n) eternity
  infinitude
  immortality
• 無給
  (n,adj-no) unpaid
  nonsalaried
  (P)
• 無極
  (n,adj-na,adj-no) (1) limitless
  (2) apolar
  (3) limitlessness of taiji
• 無菌
  (n,adj-no) sterilised
  pasteurised
  pasteurized
  (P)
• 無形
  (n,adj-no) abstract
  immaterial
  moral
  spiritual
  intangible
  (P)
• 無稽
  (adj-na,n) unsupported
  unfounded
  nonsense
• 無芸
  (adj-na,n,adj-no) lacking talent or accomplishments
• 無欠
  (adj-na,n,adj-no) flawlessness
• 無血
  (n,adj-no) bloodless
• 無月
  (n) moonless sky (poetic usage)
• 無現
  (n) (1) (abbr) infinite
  (2) incumbent member (or candidate) unaffiliated with a party
• 無言
  (n) silence
  (P)
• 無限
  (adj-no,adj-na) infinite
  (P)
• 無効
  (adj-na,n,adj-no) invalid
  no effect
  unavailable
  illegal
  (P)
• 無口
  (adj-na,n,adj-no) reticence
  taciturnity
  (P)
• 無垢
  (adj-na,n) purity
• 無告
  (n) helpless
  out of resources
• 無腰
  (n) unarmed
• 無骨
  (adj-na,n) boorish
  unrefined
  rustic
• 無根
  (adj-na,n) groundless