微び動どうだにする

expression, suru verb (irregular)

not budge an inch; not move at all

Fixed expression used almost exclusively in the negative to emphasize that someone or something does not move even slightly. Often used with ～ない.

• 彼かれは微び動どうだにしなかった。

  He didn't budge an inch.

• その猫ねこは微び動どうだにせずにじっとしていた。

  The cat stayed perfectly still, not moving a muscle.