quixotic
🇺🇸
/kwɪkˈsɑːtɪk/
🇬🇧
/kwɪkˈsɒtɪk/
unrealistic and impractical, based on idealism rather than reality
His quixotic plan to build a utopian society was met with skepticism by his peers.
他建立烏托邦社會的不切實際的計劃遭到了同儕的懷疑。