The contract is fully guaranteed and is set to tip Adams' career earnings to north of US$140 million.
Adams initially had one year at US$27 million ($38 million) remaining on his contract which was absorbed by the Pelicans, but now has two more years tacked as the Pelicans indicate the Kiwi centre is part of their future.
Within the trade included former New Zealand Breakers guard RJ Hampton, who was sent from New Orleans to Denver on the day of the NBA draft. Hampton was selected 24th just last week in the draft and will make his debut this coming season.
So far, there's been a mixed reaction to the move on social media.
"You know how you can't shoot? And run like your feet are in cement buckets? Here's 35 million more," one fan wrote.
"Are people not realizing how good of a player he is, both on the court and off of it? 17.5 is nothing for somebody who will do everything most players won't do... people need to relaaax," wrote another.
Adams joins the Pelicans after some strong seasons with the Thunder, averaging 12.9 points and 9.3 rebounds a game across the last three seasons.
His playoff experience will come in handy for a franchise beaming with talented youth and eyeing continual playoff runs in the future. Just once in his career has Adams not played in the NBA postseason.
He also forgoes the chance to enter free agency in 2021 and choose where to play amongst the teams that showed interest.