idle

/ˈaɪdəl/
verb
  1. To spend time doing nothing; to be inactive.
    • The teenagers idled on the street corner after school.
    • He idled away the summer instead of looking for a job.
    • Don't just idle all day; find something productive to do.
  2. To run an engine at low speed while the vehicle is not moving.
    • She let the car idle in the driveway while scraping ice off the windshield.
    • Trucks often idle for hours at loading docks.
    • The mechanic warned that idling the engine for too long wastes fuel.
Synonyms
adjective
  1. Not working or active; doing nothing.
    • She spent an idle afternoon just watching the clouds.
    • He was fired for standing idle while his coworkers were busy.
    • The factory machines sat idle during the strike.
  2. Without purpose or effect; pointless.
    • She made idle promises she had no intention of keeping.
    • It was an idle threat; he never meant to actually quit.
    • Don't waste time on idle gossip about your neighbors.
  3. Not in use; not occupied.
    • He left his car idle in the driveway for weeks.
    • There were several idle taxis waiting at the station.
    • The hotel has many idle rooms during the off-season.
Antonyms
noun
  1. The state of an engine running at low speed while the vehicle is not moving.
    • The car's idle was rough, so he took it to the shop.
    • Adjust the idle on the lawnmower if it stalls.
    • A smooth idle indicates a well-tuned engine.
What does "idle" mean? | whatsthatwordmean | whatsthatwordmean