quixotism Meaning, Definition & Usage
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noun quixotic (romantic and impractical) behavior
knight errantry.
WordNet
Quix"ot*ism noun
Definitions
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.