A losing streak in the NBA can be attributed to two reasons: a rebuilding team with young players and the departure of their superstar through trade or free agency.
Regardless of the reason, a prolonged drought is still an embarrassment to a franchise and a major blow to their NBA championship odds. The most recent losing streak recorded was the 20 straight losses of the Houston Rockets in the 2020-21 season after they traded away James Harden to Brooklyn.
But that 20-straight game loss of the Rockets is not the worst in history and tied for the 7th spot with two other teams. Here's a list of the six most extended regular-season losing streaks by an NBA team.