無むにする

expression, suru verb (irregular)

bring to nothing; waste; abuse

Used for rendering something useless, wasting an effort or opportunity, or taking advantage of someone's kindness. Often with objects like 努力, 好意, チャンス.

• 彼かれの努ど力りょくを無むにするようなことをしてはいけない。

  You mustn't do anything that would bring his efforts to nothing.

• せっかくのチャンスを無むにした。

  I wasted a precious chance.

expression, suru verb (irregular)

empty; clear

Used in the pattern 〜を無にする to mean making something empty or clearing it, especially the mind (心を無にする).

• 瞑めい想そうするときは心こころを無むにすることが大たい切せつだ。

  When meditating, it's important to empty your mind.