stock still

/stɑk stɪl/
adverb
  1. Without any movement; completely motionless.
    • The children were told to stand stock-still during the fire drill.
    • She remained stock-still while the bee landed on her arm.
    • The deer stood stock-still in the middle of the road, staring at the headlights.
adjective
  1. Completely motionless; not moving at all.
    • He lay stock-still on the ground, pretending to be asleep.
    • The cat was stock-still, watching the mouse hole with intense focus.
    • The old photograph showed a stock-still crowd waiting for the parade.
Antonyms
What does "stock still" mean? | whatsthatwordmean | whatsthatwordmean