anile, battered, beat-up, beaten up, broken-down, crabbed, debilitated, decrepit, derelict, dilapidated, doddered, doddering, doddery, doubtful, dubious, feeble, fossilized, gerontal, gerontic, groggy, in ruins, infirm, insecure, mossbacked, moth-eaten, mummylike, palsied, papery-skinned, ramshackle, ravaged with age, ricketish, rickety, rocky, ruined, ruinous, run-down, run to seed, rusty, senile, shaky, shriveled, slummy, spidery, spindly, stricken in years, teetering, teetery, timeworn, tottering, treacherous, tumbledown, uncertain, undependable, unhealthy, unpredictable, unreliable, unsafe, unsound, unstable, unsteady, unsure, untrustworthy, weak, withered, wizened, wobbly