staggering, as from exhaustion or blows

a boxer groggy from his opponent's hard left jab.

dazed and weakened, as from lack of sleep

Late nights always make me groggy the next morning.

Archaic . drunk; intoxicated.

adjective

clear , clear-headed , cognizant

adjective

befuddled , confused , dazed , dopey * , drunken , faint , hazy , out of it , punch-drunk * , punchy * , reeling , shaky , slaphappy * , staggering , stupefied , swaying , tired , unsteady , weak , whirling , wobbly , woozy * , dizzy , drunk , punch-drunk , sleepy , sluggish , tipsy , woozy