The phrase "monumental event" refers to a very important and significant happening or occasion. It usually describes an event that is significant enough to be remembered and recognized as a major turning point or milestone. Full definition
When making a wedding cake is the last thing anyone should be doing in the days leading up to one of the most monumental events of their relationship. (ohladycakes.com)
Despite their conflicts, everyone must find a way to survive — even as monumental events envelope their lives. (flickeringmyth.com)
With the 75th anniversary of the infamous attack just months away, the harbor allows an opportunity to learn about one of the most monumental events in America's history. (tripsavvy.com)