apprehensive Synonyms

worried discerning restless timorous trembling tremulous trepid troubled uneasy unpoised unquiet unstill upset wary weak-kneed wired timid terrified tense ruffled scared sensitive sentient shay shy skeptical skittish solicitous sophic stewing strained superstitious suspicious taut unsettled faint-hearted yellow-bellied mouselike suspenseful gutless neuronal keyed up on edge on tenterhooks panicky paranoid phobic strung out twitchy unnerved