quixotic
/kwɪkˈsɑtɪk/
adjective
- Extremely idealistic, unrealistic, and not practical, often in a way that is foolish or noble.
- His quixotic quest to save every abandoned animal in the city drained his savings.
- Her quixotic plan to end world hunger by next year was admired but seen as impossible.
- The young inventor had a quixotic dream of building a flying car that runs on water.