godan verb (-gu), intransitive verb
Describes a small, often involuntary movement of the body, frequently used in negative contexts (e.g., 身じろぎもしない) to emphasize stillness.
彼は痛みで身じろぎもせずに横たわっていた。
He lay still without stirring because of the pain.
赤ん
The baby was sleeping soundly and didn't budge at all.