overcontrol

verb

1. (transitive)To control to too great a degree.

   “She’s not fancy or overcontrolled: she sounds relaxed but alert, and a slight nasal flatness in her voice humanizes her, makes her touch the ground.”

noun

1. (uncountable)Excessive control.

   “After a stressful event, the histrionic patient often manifests swings from rigid overcontrol to uncontrolled intrusions and emotional repetition.”