addle, addled, addlepated, bedeviled, befogged, befuddled, bemused, bewildered, bushed [chiefly Australian], confounded, confused, dazed, distracted, dizzy, dopey (also dopy), fogged, mixed-up, muddleheaded, muzzy, pixilated (also pixillated), punch-drunk, punchy, raddled, shell-shocked, silly, slaphappy, spaced-out (or spaced), stunned, stupefied, zonked, zonked-out