Empty; vacant; not occupied: as, idle hours.Not engaged in any occupation or employment; unemployed; inactive; doing nothing.In a state of disuse; remaining unused.Useless; ineffectual; vain; bootless; unavailing; futile: as, idle rage.Of no importance; trivial; irrelevant; flippant; pointless; unprofitable: as, an idle story.Acting idly or unconcernedly; careless; indifferent.Slothful; given to rest and ease; averse to labor; lazy: as, an idle fellow.Wandering in mind; light-headed: an occasional use in old plays.n. Idleness; indolence.n. An indolent person.To spend or waste time in inaction or without employment.To spend in idleness; waste: generally followed by away: as, to idle away time.Of machinery, doing no direct work; merely changing the direction of motion: as, an idle gear; also, running merely to carry transmission-elements: as, an idle pulley (which see).