impossible task

Guaranteed to fail

An impossible task is something that cannot be accomplished, whether due to logical contradiction, physical limitations, or overwhelming difficulty.

The phrase often carries dramatic weight: They've given me an impossible task.

Sometimes used hyperbolically for things that are merely very hard: Getting him to apologize is an impossible task.

Opposites
achievability

impossible taskwithin reach

Close enough to grasp

sure thing · foregone conclusion · low-hanging fruit · slam dunk

ease/difficulty

impossible taskpiece of cake

Idiomatic easy task

child's play · walk in the park · cakewalk · cinch · no-brainer

certainty of outcome

impossible tasksure thing

Guaranteed outcome or agreement

foregone conclusion · certainty · safe bet · done deal · fait accompli

Family

impossible, task, possible, impossibly, impossibility, possibility, possibly, tasks, tasked

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Negative · Everyday, not technical · Rated G