Denver didn't re-sign Ennis after his 10-day contract expired Thursday, Keith Smith of Spotrac.com reports.
The Nuggets still have an opening on the 15-man roster, but Denver may prefer to keep that spot open for flexibility purposes ahead of the Feb. 10 trade deadline. For the past month, Ennis has bounced between the Nets, Clippers and Nuggets on a series of 10-day deals, averaging 4.1 points and 1.7 rebounds in 8.0 minutes per game over his seven appearances across those three teams.