weakened (adj.)

• abated
• ablated
• aggravated
• attenuated
• bated
• belittled
• broken
• burned
• burned-out
• busted
• cachectic
• checked
• consumed
• contracted
• cracked
• crazed
• cut
• damaged
• debilitated
• decreased
• deflated
• diminished
• disabled
• dissipated
• drained
• drooping
• droopy
• effete
• enervated
• eroded
• exhausted
• fagged
• failing
• faint
• fallen
• fatigued
• feeble
• flagging
• footsore
• frail
• harmed
• hurt
• impaired
• imperfect
• incapacitated
• infirm
• injured
• invalid
• irritated
• jaded
• lacerated
• languid
• less
• lesser
• lowered
• mangled
• moribund
• mutilated
• pale
• peaked
• peaky
• reduced
• rent
• run-down
• sagging
• scorched
• seedy
• shattered
• shorn
• shrunken
• sickly
• slashed
• smaller
• smashed
• spent
• split
• sprung
• tired
• torn
• unhealthy
• unrefreshed
• unsound
• valetudinarian
• valetudinary
• wasted
• weak
• weakly
• wearied
• weary
• worn
• worn-out
• worse
• worsened