Meaning of “idle” - Learner’s Dictionary


adjective uk us /ˈaɪdl/

not working or being used:

The factory has stood idle for over a year.
NOT SERIOUS [ always before noun ]

not serious or having no real purpose:

idle gossip
This is no idle threat.

lazy and not willing to work:

He knows what has to be done, he's just bone idle (= extremely lazy).
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)