Select the most appropriate meaning of the given idiom.

Be at a loose end

To have nothing to do

The most appropriate meaning of the idiom "be at a loose end" is >To have nothing to do.<

This idiom means to be unoccupied or without any plans. It can also mean to be feeling bored or restless.

The other options are not correct.

• On a turning point does not mean be at a loose end.
• Defining moment does not mean be at a loose end.
• In much trouble does not mean be at a loose end.