like painting the Forth Bridge

Definitions

Never-ending; said of a task which will never be completed due to the perpetual cycle of having to recommence as soon as one has reached the end, or of efforts that are in vain because of this.

UK

Examples

“Where only an overview has been given, I hope⟳ that the book will provide⟳ a useful springboard and the appropriate legal advice is sought. The revision has been rather like⟳ painting the Forth Bridge and whilst every effort has been made to bring⟳ the law as up to date⟳ as possible, events often overtake⟳ one and a keen eye should be kept on the construction journals and newspapers.”

“Weeding can feel⟳ like⟳ painting the Forth Bridge—by the time you finish⟳, it’s time to start⟳ again.”

CEFR level