Synonyms for Idle:
loose, dead, unused, light.
fallow, still, inactive, unemployed, sleepy, lethargic, sedentary, dormant, Snail-paced, jobless, unmoving, stationary, unworking, supine, motionless, lifeless.
lethargic, comatose, catatonic, sedentary, passive, insensible, vegetative, inactive, lifeless, stationary, dormant, apathetic, immobile, sluggard, Reposing, inanimate, languorous, listless, languid, stagnant, paralytic, motionless, sluggish, still, static, inert.
unmoving, inert, quiet, motionless, sleeping, inactive, immobile, still, standing, vegetative, stagnant, languid, calm, fixed, becalmed, dormant, tranquil, dead, Resting, static, stationary.
submissive, calm, complaisant, placid, acquiescent, inert, passive, inactive, yielding.
•worthless, ineffective (adjective)
hollow, futile, empty, trivial, vain, rambling, pointless, groundless, useless, frivolous, otiose.
n.vain, casual, complacency, slipshod, careless, perfunctory, remiss, complacent, like a bull in a china shop. faulty, inoperative, purposeless, worthless, inefficient, defective, useless, ineffective, pathetic, action. off-duty, subdued, sluggard, industrious, do-nothing, underemployed, shiftless, available. disused, full, sparing, at full stretch, economy, disuse, untapped, economical, hollow, devoted. true, bottomless, half-assed, supine. •empty (noun)
rambling, vain, futile, trivial, pointless, shallow.
lackadaisical, otiose, unwarranted, goldbricking, slothful, lazy, baseless, inactive, loose, irresponsible, indolent, unprofitable, unsupported, work-shy, laze, unfounded, light, stagnate, frivolous, leisure, unengaged, bone-idle, jobless, faineant, bone-lazy, out of work, unused, slug, groundless, at liberty, dead, leisured.
rest, hibernate, stop, immobilize, stagnate.
off-duty, sparing, subdued, disused, untapped, disuse, underemployed. cycle, shallow, inoperative, bottomless, backfire, shiftless, do-nothing, available. devoted, grind, burn up. fire, engagement. flood, economical, hollow, empty. economy. go. •idle
•Other relevant words:
inefficient, ineffective, sluggard, uncultivated, groundless, irresponsible, frivolous, goldbricking, rusty, unfounded, leisure, barren, sparing, laze, do-nothing, work-shy, economy, remiss, abandoned, trivial, fallow, slothful, pointless, rambling, deserted, careless, out of work, unsupported, otiose, leisured, lackadaisical, Workless, void, untapped, shiftless, bone-lazy, unprofitable, light, bottomless, untouched, purposeless, inoperative, underemployed, lazy, indolent, shallow, unused, grind, at liberty, unwarranted, faineant, down, dusty, unengaged, vain, slug, supine, available, loose, bone-idle, empty, futile, worthless, useless, cycle, hollow, go, baseless, backfire.