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English definition of “idle”

idle

adjective     /ˈaɪdl/
NOT WORKING not working or being used: The factory has stood idle for over a year.Passive and not workingUseless and futile
NOT SERIOUS [always before noun] not serious or having no real purpose: idle gossip This is no idle threat.Useless and futile
LAZY lazy and not willing to work: He knows what has to be done, he's just bone idle (= extremely lazy).Laziness and lazy peopleAvoiding action
idleness noun [U] idly adverb We cannot stand idly by (= not do anything) and let this plan go ahead.
(Definition of idle adjective from the Cambridge Learner's Dictionary © Cambridge University Press)

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