1. Joyously unrestrained
   - ebullient, exuberant

See also: high-spiritedness, spirited

• hydranth
• hydrargyrum
• hydrarthrosis
• Hydrastis
• Hydrastis Canadensis
• hydrate
• hydrated
• hydrated aluminium oxide
• hydrated aluminum oxide
• hydrated lime
• hydrated oxide
• hydration
• hydraulic
• hydraulic brake
• hydraulic brake cylinder
• hydraulic brakes
• hydraulic cement
• hydraulic engineering
• hydraulic press
• hydraulic pump
• hydraulic ram
• hydraulic system
• hydraulic transmission
• hydraulic transmission system
• hydraulically