folie

"His decision to invest all his savings in a risky venture was a complete folie."

"The artist’s latest painting was inspired by a moment of pure folie."

"Many people regarded her extravagant lifestyle as a folie of sorts."

"He decided to folie with his friends and try something completely out of character."

"Sometimes we folie when we let our emotions dictate our actions."

"She didn't want to folie again, but the thrill of adventure was too tempting."