adj. 25B6; adjective ANXIOUS, perturbed, troubled, bothered, concerned, upset, distressed, distraught, disquieted, uneasy, fretful, agitated, nervous, edgy, on edge, tense, overwrought, worked up, keyed up, stressed; apprehensive, fearful, afraid, frightened, scared; informal uptight, a bundle of nerves, on tenterhooks, jittery, jumpy, twitchy, in a stew, all of a dither, in a flap, in a sweat, het up, rattled; Brit. informal windy, having kittens; N. Amer. informal antsy, squirrelly.
carefree.