Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun idling

1 sense of idling

Sense 1
idleness, idling, loafing -- (having no employment)
       => inactivity -- (being inactive; being less active)

Antonyms of verb idle

2 senses of idle

Sense 1
idle, tick over -- (run disconnected or idle; "the engine is idling")
       Antonym of run (Sense 13)
      => run -- (be operating, running or functioning; "The car is still running--turn it off!")

Sense 2
idle, laze, slug, stagnate -- (be idle; exist in a changeless situation; "The old man sat and stagnated on his porch"; "He slugged in bed all morning")
       Antonym of work (Sense 1)
      => work -- (exert oneself by doing mental or physical work for a purpose or out of necessity; "I will work hard to improve my grades"; "she worked hard for better living conditions for the poor")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb idle

2 senses of idle

Sense 1
idle, tick over -- (run disconnected or idle; "the engine is idling")

Sense 2
idle, laze, slug, stagnate -- (be idle; exist in a changeless situation; "The old man sat and stagnated on his porch"; "He slugged in bed all morning")