v. 1 quiver, shake, tremble, shiver, jerk, convulse, quaver, quake; vibrate, rattle I shudder to think what he might do next Olive slammed on the brakes and the ancient car shuddered to a stop.
n. 2 quiver, shake, tremble, twitch, shiver, convulsion, paroxysm, spasm, quaver, quake; vibration, rattle He gave a shudder at the prospect of having to clean out the stable