epochal ˈe-pə-kəl , ˈe-ˌpä-kəl adjective
: highly significant or important, especially for bringing about or marking the beginning of a new development or era
The word epochal has appeared in 49 articles on NYTimes.com in the past year, including on Nov. 13 in “Cheeseburgers, Oil and Minimum Wage: Building a Museum of Capitalism” by Jennifer Schuessler:
Thirty years ago last week, the Berlin Wall came down, a surprise event that soon brought the rest of Soviet-style communism down with it.
But a few days before the anniversary of that epochal moment, a crowd gathered in a Greenwich Village gallery to celebrate the opening of the latest iteration of the Museum of Capitalism, a roving exhibition dedicated to looking back on the system that triumphed in 1989 from some imagined future when it, too, has disappeared.