quixotism

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.

Source: Webster's Revised Unabridged Dictionary (1913), United States public domain. See methodology for full licensing detail. Word validity for game play may differ from any official game dictionary.