stagnant (adj.)

• abeyant
• apathetic
• benumbed
• blase
• bored
• cataleptic
• catatonic
• contaminated
• contemplative
• dead
• debilitated
• dirty
• do-nothing
• dopey
• dormant
• droopy
• drugged
• dull
• enervated
• exanimate
• filthy
• flat
• foul
• groggy
• heavy
• idle
• immobile
• inactive
• inanimate
• inert
• jaded
• lackadaisical
• laissez-faire
• languid
• languorous
• latent
• leaden
• lethargic
• lifeless
• listless
• logy
• lumpish
• meditative
• moribund
• motionless
• neuter
• neutral
• numb
• paralytic
• paralyzed
• passive
• phlegmatic
• polluted
• putrescent
• putrid
• quiescent
• quiet
• sated
• sedentary
• slack
• sleeping
• sleepy
• slow
• sluggish
• smoldering
• somnolent
• stale
• standing
• standpat
• static
• stationary
• still
• supine
• suspended
• tame
• torpid
• unmoving
• vegetative
• wan
• weary
• world-weary