- nonplussed
- Synonyms and related words:addled, at a loss, at a nonplus, at a stand, at a standstill, at an impasse, baffled, bamboozled, beat, bewildered, buffaloed, confounded, dazed, floored, fuddled, in a dilemma, in suspense, licked, muddled, mystified, on tenterhooks, perplexed, puzzled, stuck, stumped, thrown
Moby Thesaurus. Grady Ward. 1996.