Synonyms and related words :
addled, agitated, all-overish, anxious, anxioused up, apprehensive, at a loss, baffled, bamboozled, beat, bothered, buffaloed, concerned, confounded, dazed, disquieted, disturbed, fearful, floored, foreboding, fuddled, in a dilemma, in a pucker, in a stew, in suspense, keyed-up, licked, misgiving, muddled, mystified, nervous, nonplussed, on edge, on tiptoe, overanxious, overapprehensive, perplexed, perturbed, puzzled, quivering, solicitous, strained, stuck, stumped, suspenseful, taut, tense, thrown, troubled, uneasy, with bated breath, with muscles tense, zealous