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.2007 January 8, The New York Times, “New CDs”, in New York Times:
overcontrol
noun
Etymology From over- + control.
1
Excessive control.
After a stressful event, the histrionic patient often manifests swings from rigid overcontrol to uncontrolled intrusions and emotional repetition.2011, Mardi Jon Horowitz, Stress Response Syndromes: