inert (adj.)

• abeyant
• abiotic
• apathetic
• asleep
• azoic
• benumbed
• blase
• bored
• cataleptic
• catatonic
• changeless
• constant
• contemplative
• dead
• debilitated
• do-nothing
• dopey
• dormant
• droopy
• drugged
• dull
• dumb
• enervated
• exanimate
• flat
• foul
• groggy
• heavy
• idle
• immobile
• immutable
• impassive
• impotent
• inactive
• inanimate
• incommutable
• inconvertible
• indefeasible
• indolent
• insensate
• insensible
• insentient
• invariable
• irretrievable
• irreversible
• irrevocable
• jaded
• lackadaisical
• laissez-faire
• languid
• languorous
• lasting
• latent
• lazy
• leaden
• lethargic
• lifeless
• listless
• logy
• lumpish
• meditative
• moribund
• motionless
• mute
• neuter
• neutral
• noble
• nonconscious
• nonliving
• nonreturnable
• nonreversible
• numb
• otiose
• paralytic
• paralyzed
• passive
• permanent
• phlegmatic
• powerless
• quiescent
• quiet
• sated
• sedentary
• senseless
• slack
• sleeping
• sleepy
• slothful
• slow
• sluggish
• smoldering
• somnolent
• soulless
• stagnant
• standing
• standpat
• static
• stationary
• still
• stolid
• supine
• suspended
• tame
• torpid
• unalterable
• unaltered
• unanimated
• unchangeable
• unchanged
• unchanging
• unconscious
• undeviating
• unfeeling
• unmodifiable
• unremitting
• unresponsive
• unsusceptible
• unvarying
• vegetative
• wan
• weary
• world-weary