Synonyms and related words :
adrift, afloat, agitated, aguey, aguish, algid, all shook up, all-overish, anile, aquiver, aspen, bagging, baggy, bashful, blue with cold, blurred, breathy, chattering, chilly, choked, choking, clear, cold, cool, cowardly, crabbed, croaking, dangerous, dangling, debilitated, decrepit, desultory, dickey, diffident, dilapidated, dithery, doddered, doddering, doddery, doubtful, drawling, drawly, drooping, dubious, dysphonic, easy, fearful, fearing, fearsome, feeble, fidgeting, fidgety, flapping, flimsy, floating, fluctuant, fluttery, fossilized, free, frozen, frozen to death, gerontal, gerontic, goosy, groggy, guttural, half-frozen, hanging, harsh, hawking, hazardous, hoarse, iffy, in a quiver, in fear, inarticulate, indecisive, indistinct, infirm, insecure, insubstantial, jittery, jumpy, lax, lisping, loose, mispronounced, mossbacked, moth-eaten, mousy, mummylike, muzzy, nasal, nervous, palsied, papery-skinned, perilous, precarious, problematic, provisional, quaking, quavering, quavery, questionable, quivering, quivery, rabbity, rachitic, rackety, ramshackle, rattletrap, ravaged with age, relaxed, ricketish, rickety, risky, rocky, rootless, run to seed, rusty, scary, senile, shaking, shifting, shifty, shivering, shivery, shook up, shrinking, shriveled, shuddering, shy, skittery, skittish, slack, slippery, sloppy, snuffling, spidery, spindly, startlish, stifled, strangled, streaming, stricken in years, succussatory, succussive, suspect, teetering, teetery, temporary, tentative, tenuous, thick, throaty, ticklish, timeworn, timid, timorous, tottering, tottery, treacherous, trembling, trembly, tremulant, tremulous, trepidant, trigger-happy, tumbledown, twangy, twitchy, twittery, unanchored, unbound, uncertain, unclear, undependable, undone, unfaithworthy, unfastened, unfixed, unhealthy, unpredictable, unreliable, unsafe, unsettled, unsolid, unsound, unstable, unsteadfast, unsteady, unstuck, unsubstantial, unsubstantiated, unsupported, unsure, untied, untrustworthy, vacillating, velar, vibrating, wavering, weak, with chattering teeth, withered, wizened, wobbling, wobbly