Definition of idle/empty threat
- She said she would leave him, but he knew it was an idle/empty threat.
: lacking worth or basis : vain
: not occupied or employed: such as
: having no employment : inactive
: to spend time in idleness
: to move idly
: to run at low power and often disconnected usually so that power is not used for useful work
: containing nothing
: not occupied or inhabited
: to make empty : remove the contents of
: deprive, divest
: to discharge (itself) of contents
: something (such as a bottle or can) that is empty
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