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English definition of “idle”

idle

adjective    /ˈɑɪ·dəl/
not working , not active , or doing nothing: idle factories The machines are standing idle because there are no spare parts . Idle also means not useful or not based on fact : idle speculation idleness    /ˈɑɪ·dəl·nəs/ noun [U] idly    /ˈɑɪd·li, -əl·i/ adverb I will not stand idly by while my business is being destroyed .
(Definition of idle adjective from the Cambridge Academic Content Dictionary © Cambridge University Press)
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