A lightbulb moment is the instant an answer appears. Have a lightbulb moment.
It usually comes when you have stopped working, in a bath or on a walk. A lightbulb moment feels sudden and is the end of work already done.
1nounlightbulb momentThe instant an answer appears.
“The lightbulb moment came on the bus home.”
lightbulb moment is a moment.
Practised in Thinking & Memory