音おと無なしの構かまえ

expression, noun

making no sound; staying quiet

Literal meaning: adopting a posture or stance of complete silence, often to avoid detection.

• 敵てきに見みつからないように、音おと無なしの構かまえでじっとしていた。

  I stayed perfectly still, making no sound, so as not to be found by the enemy.

expression, noun

lying low; keeping quiet and waiting for a chance

Figurative use: deliberately staying silent and inconspicuous, often while waiting for the right moment to act.

• 彼かれはチャンスが来くるまで音おと無なしの構かまえを決きめ込こんだ。

  He decided to lie low until an opportunity came.