Transient tic is a neurological disorder that causes sudden, involuntary muscle movements or vocalizations, lasting for a short period. Its antonyms are stability, constancy, and permanence. These antonyms represent the opposite characteristics of transient tics, which are unpredictable, temporary and ever-changing. Stability implies a steady state, where the body is calm and controlled without any sudden movements. Constancy denotes uniformity, which does not change abruptly, and permanence represents a state of longevity without any sudden disappearance. These antonyms highlight the absence of the involuntary movement or sound associated with a transient tic, emphasizing a state of balance and equilibrium in the body.