fool's errand

Doomed to fail

A fool's errand is a task that's pointless or bound to fail—one that wastes the effort of whoever undertakes it.

The phrase often implies the person was naive to attempt it: He sent me on a fool's errand to find a part that doesn't exist.

Sometimes the errand is a deliberate prank to get someone out of the way.

Opposites
purpose and outcome

fool's errandsure thing

Guaranteed outcome or agreement

noble quest · safe bet · slam dunk · done deal · winning strategy

rationality of pursuit

fool's errandinformed decision

Choice made with facts

purpose/worthiness

fool's errandnoble cause

Morally elevated purpose

Family

fool, foolish, errand, fooled, fools, fooling, foolishness, errands, foolery

Familiarity
Top 50,000
Profile
Used worldwide · Timeless · Abstract · Negative · Everyday, not technical · Rated G