unhealthy (adj.)

• ailing
• bad
• cachectic
• chancy
• contaminated
• corrupt
• damaging
• dangerous
• debilitated
• degenerate
• depraved
• destructive
• detrimental
• diseased
• doubtful
• drained
• dubious
• enervated
• exhausted
• failing
• feeble
• flagitious
• foul
• frail
• hairy
• harmful
• hazardous
• ill
• indisposed
• infirm
• injurious
• insalubrious
• insanitary
• insecure
• invalid
• malign
• morbid
• morbific
• moribund
• nefarious
• noisome
• noxious
• pale
• pathogenic
• pathological
• peaked
• peaky
• peccant
• perilous
• perverse
• pestiferous
• polluted
• putrid
• reduced
• risky
• rocky
• rotten
• run-down
• septic
• shaky
• sick
• sickly
• tainted
• tottery
• touch-and-go
• treacherous
• uncertain
• undependable
• unhealthful
• unhygienic
• unpredictable
• unreliable
• unsafe
• unsanitary
• unsound
• unstable
• unsteady
• unsure
• untrustworthy
• unwell
• unwholesome
• valetudinarian
• valetudinary
• vicious
• villainous
• weakened
• weakly
• wicked