quix·ot·ic
adjective/kwɪkˈsɒtɪk/
/kwɪkˈsɑːtɪk/
(formal)- having or involving ideas or plans that show imagination but are usually not practical
想入非非的；异想天开的；堂吉诃德式的 Word OriginFrom the character Don Quixote in the novel by Miguel de Cervantes, whose adventures are a result of him trying to achieve or obtain things that are impossible.