1. 堂吉诃德式的;幻想的;不切实际的;空想的
If you describe someone's ideas or plans as quixotic, you mean that they are imaginative or hopeful but unrealistic.

1. not sensible about practical matters
idealistic and unrealistic

e.g. as quixotic as a restoration of medieval knighthood
a romantic disregard for money
a wild-eyed dream of a world state

Synonym: romanticwild-eyed