Definition of folly
- his folly in thinking he could not be caught
- The prank was a youthful folly.
- Paying so much for that land was folly, since it was all rocks and scrub trees.
the folly of driving fast on steep, winding roads
his folly in thinking that he would not be noticed
The folly of such an action should be apparent to everyone.
the follies of the modern world
the famous Ziegfeld Follies of the 1920s
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'folly.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use: 13th centurySee Words from the same year
: the lack of good sense or judgment
: a foolish act or idea : foolish behavior
: a very unusual or fancy building that was built in a garden for decoration or amusement in the past
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