Quixotic

/kwɪkˈsɑːtɪk/ adjective hard

Pursuing an idealistic, impractical goal with little regard for whether it can actually be achieved.

His quixotic plan to end world hunger with a single fundraiser was admirable but unrealistic.

Memory Trick

Named after Don Quixote, the novel's hero who charged at windmills believing they were giants — a quixotic dream chases equally impossible targets.