Folly means doing something without good sense. It is when someone makes a bad choice or act that is not smart.
It was a folly to trust him so quickly.
Buying that car was a great folly.
A folly is a strange or pretty building made just for show, not for practical use. It is often in gardens or big parks.
The garden has a small folly at the end.
They built a folly near the lake for visitors.
This meaning talks about the condition or quality of not being wise. It is when someone behaves badly because of poor thinking.
His folly caused many problems at work.
Avoid the folly of ignoring advice.
Folly can mean one specific mistake or error that someone makes. It is a wrong action that causes problems.
Losing the keys was a simple folly.
Forgetting her birthday was a big folly.
In architecture, folly means a fancy or strange building added to gardens for beauty or fun, not to be used for work or living.
The castle garden includes a folly tower.
They enjoy visiting the follies on the estate.
Folly here is used in stories or talks to show when people act badly or wrongly because they do not think well.
His folly cost him the trust of friends.
The play shows human folly clearly.
