expression, i-adjective
not moving a muscle; not stirring an inch
Emphatic negative expression meaning completely motionless, often used when someone is frozen in place or refuses to budge.
彼は怖くて身じろぎもしなかった。
He was so scared he didn't move a muscle.
猫はじっと身じろぎもしないで鳥を見ていた。
The cat watched the bird without moving a muscle.