تعريف fool's errand في الإنجليزية الإنجليزية القاموس.
A foolish undertaking, especially one that is purposeless, fruitless, nonsensical, or certain to fail
Shultz took little notice of the Soviet view or that of others who said his Middle East mission was a fool's errand. You can't be too afraid of failing, said the 67-year-old diplomat.