Definitions

1. noun

a foolish or impractical act or idea

“The king’s decision to invade the neighboring country was a folly that led to his downfall.”

2. noun

a building or structure that is no longer used for its original purpose, especially a medieval castle or tower

“The old folly in the garden was a popular spot for picnics and weddings.”

3. noun

a small decorative building or structure, especially in a garden or park

“The estate had several follies, including a grotto and a temple.”

4. verb

to behave foolishly or impractically

“The tourists were foolishly trying to climb the steep mountain without proper equipment.”

5. adjective

foolish or impractical

“His folly in investing in the failing company left him bankrupt.”