decrepit (adj.)

• aged
• ancient
• anile
• antiquated
• battered
• beat-up
• bedraggled
• broken-down
• cast-off
• childish
• childlike
• crabbed
• creaky
• crippled
• damaged
• debilitated
• decayed
• derelict
• dilapidated
• disabled
• doddering
• doddery
• doting
• elderly
• enervated
• feeble
• flimsy
• fossilized
• fragile
• frail
• gaga
• haggard
• impaired
• incapacitated
• infirm
• injured
• insubstantial
• marred
• moth-eaten
• old
• palsied
• poor
• quavering
• ragged
• ramshackle
• rickety
• rotten
• ruined
• ruinous
• run-down
• rusty
• seedy
• senescent
• senile
• shabby
• shaking
• shaky
• shriveled
• slipshod
• sloppy
• slummy
• spoiled
• superannuated
• tacky
• threadbare
• timeworn
• tired
• tottering
• tottery
• unfirm
• unfit
• unkempt
• unsound
• unstable
• unsubstantial
• used
• wasted
• weak
• weakened
• weakly
• withered
• wizened
• worn