SYNONYMS
confused, bewildered, bemused, puzzled, perplexed, baffled, stumped, mystified, stupefied, muddled, befuddled, fuddled, dumbfounded, at sea, at a loss, at sixes and sevens, thrown, thrown off balance, taken aback, disoriented, disconcerted, discomposed, troubled, discomfited, unnerved, shaken, shaken up, dazed, stunned, surprised, astonished, astounded
informal flummoxed, bamboozled, discombobulated, clueless, fazed, floored, stumped, foxed
Canadian, Australian, New Zealand informal bushed
archaic wildered, mazed, distracted