Unrealistic
Synonyms: Impractical, unworkable, non-viable, irrational, senseless, improbable, foolish, wild, delusory, idealistic, far-fetched, unworldly, starry-eyed, half-baked, potty, non-realistic, non-naturalistic, non-representational, abstract, impracticable, unfeasible, unreasonable, illogical, silly, impossible, fanciful, absurd, quixotic, utopian, perfectionist, romantic, visionary, crazy, unlifelike, unreal-looking, unnatural, and unrepresentative.
Example Sentences
Her expectations for the project were completely unrealistic.
It's unrealistic to finish this task in one hour.
The movie's plot was entertaining but highly unrealistic.
He set an unrealistic goal for the team to achieve.
Believing in overnight success is often unrealistic.