decrepit

adj.

[1]	feeble , creaky , derelict , enfeebled , weak , flea-bitten , run-down , weakened , frail , woebegone , infirm , wasted , worn out , unfit , debilitated , enervated , disabled , incapacitated , crippled , doddering , out of shape , in bad shape , aged , old , elderly , ancient , superannuated , senescent , senile , (Colloq) gaga
[2]	dilapidated , debile , feeble , deteriorated , crumbling , infirm , rickety , decayed , decaying , sapless , weak , withered , wasted , weakly , antiquated , tumbledown , broken-down , rickety , unstable , shaky , ramshackle , derelict , creaking , creaky , run-down