1. In a disloyal and faithless manner
   - traitorously, treacherously, treasonably, false

See also: faithless

• hyperacidity
• hyperactive
• hyperactivity
• hyperacusia
• hyperacusis
• hyperadrenalism
• hyperadrenocorticism
• hyperaemia
• hyperaemic
• hyperaesthesia
• hyperaldosteronism
• hyperalimentation
• hyperbaric
• hyperbaric chamber
• hyperbaton
• hyperbetalipoproteinemia
• hyperbilirubinemia
• hyperbilirubinemia of the newborn
• hyperbola
• hyperbole
• hyperbolic
• hyperbolic function
• hyperbolic geometry
• hyperbolical
• hyperbolically