inert

1 not being in a state of use, activity, or employment the inert, abandoned factories that are scattered all over that dying city Synonyms dead, dormant, fallow, free, idle, inactive, inoperative, latent, off, unused, vacantRelated Words abeyant, arrested, interrupted, suspended; unoccupied; asleep, comatose, lifeless, moribund, quiescent, sleepy; inoperable, unusable, unworkable, useless; dull, slowNear Antonyms functional, operable, operational, workable; assiduous, industrious, sedulous; energetic, vigorous; feasible, practical, usable (also useable), useful, viableAntonyms active, alive, busy, employed, functioning, going, living, on, operating, operative, running, working

2 slow to move or act a sleepy, inert reptile that is no threat to people when left alone Synonyms dull, inactive, lethargic, quiescent, sleepy, sluggish, torpidRelated Words ambitionless, apathetic, indolent, languorous, lazy, lazyish, listless, shiftless, slack, slothful, sluggard, sluggardly; dormant, inanimate, motionless, resting, sedentary, static, still; dead; dopey (also dopy), drugged; asleep, drowsy, somnambulant; catatonic, comatoseNear Antonyms busy, engaged, occupied, working; animated, bouncing, dynamic, energetic, kinetic, lively, peppy, perky, spirited, sprightly, springy, vigorous, vital, vivacious, zippy; assiduous, diligent, hardworking, industrious, sedulousAntonyms active