a falling short of an essential or desirable amount or number <attributes many of the nation's problems to a lacuna of leadership at the top> Synonyms crunch
an incomplete or deficient area <a lacuna in its collection of Impressionists that the museum is trying to fill> Related Words defectiveness
Seen & Heard
What made you want to look up lacuna? Please tell us where you read or heard it (including the quote, if possible).