quixotism

Quixotic extravagance in notions, actions, or undertakings; pursuit of absurdly romantic enterprises; uncalled-for or useless chivalry or magnanimity.

That form of delusion which leads to extravagant and absurd undertakings or sacrifices in obedience to a morbidly romantic ideal of duty or honor, as illustrated by the exploits of Don Quixote in knight-errantry. See quixotic.

That form of delusion which leads to extravagant and absurd undertakings or sacrifices in obedience to a morbidly romantic ideal of duty or honor, as illustrated by the exploits of Don Quixote in knight-errantry.

Quixotry.

quixotic (romantic and impractical) behavior