- idle [īd′'l]adj.idler, idlest [ME idel < OE, empty, akin to Ger eitel, vain, empty < ? IE base * ai-dh, to burn, shine: basic sense, either “only apparent, seeming” or “burned out”]1.a) having no value, use, or significance; worthless; useless [idle talk]b) vain; futile; pointless [an idle wish]2. baseless; unfounded [idle rumors]3.a) unemployed; not busyb) inactive; not in use [idle machines]c) not filled with activity [idle hours]4. not inclined to work; lazy5. designating certain parts of a fuel system that set an engine's idling speedvi.idled, idling [< IDLE the adj.: parallel with OE idlian, to come to nothing, be useless]1. to move slowly or aimlessly; loaf2. to spend time unprofitably; be unemployed or inactive3. to operate without transmitting power; esp., to operate a motor vehicle's engine while the vehicle is not movingvt.1. to waste; squander: usually with away [to idle away one's youth]2. to cause (a motor, etc.) to idle3. to cause to be inactive or unemployedn.the state or act of idling [an engine at idle]SYN.- LOITER, VAINidlenessn.idlyadv.
English World dictionary. V. Neufeldt. 2014.