JMdict: 1527780

未知数 【みちすう】

  1. [n] (an) unknown; unknown number; variable
  2. [n,adj-no] unknown quantity; not yet known
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
未 Un-, Not Yet, Hitherto, Still, Even Now, Sign Of The Ram, 1-3pm, Eighth Sign Of Chinese Zodiac ミ, ビ いま.だ, ま.だ, ひつじ
知 Know, Wisdom チ し.る, し.らせる
数 Number, Strength, Fate, Law, Figures スウ, ス, サク, ソク, シュ かず, かぞ.える, しばしば, せ.める, わずらわ.しい