Sentence examples for fallen short from inspiring English sources

The phrase "fallen short" is correct and usable in written English.
It is usually used in the phrase "fall short of (something)." This phrase is used to indicate that an expectation or goal has not been met. You can use it when referring to a person or group not achieving a certain goal or expectation. For example, "The team had big expectations for the season, but they have fallen short and failed to make the playoffs."