quixotism quixotically • quixotize · · · Info · Definitions · Synonyms · Characters · · quixotism · · Text Latin · · Script 9 · · Length Definitions · · · (noun) quixotic (romantic and impractical) behavior. Synonyms: knight errantry. · · Noun Definition 1 Synonyms · · · knight errantry · · Synonym 1 Characters · · i latin small letter i U+0069 m latin small letter m U+006D o latin small letter o U+006F q latin small letter q U+0071 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075 x latin small letter x U+0078