QUIXOTIC quix·ot·ic /kwikˈsädik/ adjective exceedingly idealistic; unrealistic and impractical. "a vast and perhaps quixotic project" synonyms: idealistic, unbusinesslike, romantic, extravagant, starry-eyed, visionary, utopian, perfectionist, unrealistic, unworldly; impracticable, unworkable, impossible, nonviable, inoperable, unserviceable; useless, ineffective, ineffectual, inefficacious