| 1. | a person who passes time in a lazy or unproductive way. |
| 2. | Machinery. an idle gear, wheel, or pulley. |
| 3. | Railroads. an empty freight car placed under the projecting end of a long object carried by the next car, so that the latter can be connected with another part of the train. |
| 4. | Nautical. day man (def. 2). |
adjective, i⋅dler, i⋅dlest, verb i⋅dled, i⋅dling, noun | 1. | not working or active; unemployed; doing nothing: idle workers. |
| 2. | not spent or filled with activity: idle hours. |
| 3. | not in use or operation; not kept busy: idle machinery. |
| 4. | habitually doing nothing or avoiding work; lazy. |
| 5. | of no real worth, importance, or significance: idle talk. |
| 6. | having no basis or reason; baseless; groundless: idle fears. |
| 7. | frivolous; vain: idle pleasures. |
| 8. | meaningless; senseless: idle threats. |
| 9. | futile; unavailing: idle rage. |
| 10. | to pass time doing nothing. |
| 11. | to move, loiter, or saunter aimlessly: to idle along the avenue. |
| 12. | (of a machine, engine, or mechanism) to operate at a low speed, disengaged from the load. |
| 13. | to pass (time) doing nothing (often fol. by away): to idle away the afternoon. |
| 14. | to cause (a person) to be idle: The strike idled many workers. |
| 15. | to cause (a machine, engine, or mechanism) to idle: I waited in the car while idling the engine. |
| 16. | the state or quality of being idle. |
| 17. | the state of a machine, engine, or mechanism that is idling: a cold engine that stalls at idle. |

| 1. | a seaman who is a member of a deck gang. |
| 2. | Also called idler. a member of a ship's company who does not stand watch and who ordinarily works only during the day, as a carpenter or sailmaker. |
