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Adjective: groggy (groggier,groggiest)  gró-gee
  1. Stunned or confused and slow to react (as from blows or drunkenness or exhaustion)
    "I woke up, tired and groggy";
    - dazed, foggy, logy [N. Amer], stuporous

Derived forms: groggiest, groggier

See also: lethargic, unenergetic

Encyclopedia: Groggy