It was the 20th straight home win at Moby Arena for Colorado State (11-2).
Colorado State also had a 40-26 rebounding advantage, and outscored Adams State (7-1) 36-16 in the paint and 14-4 off turnovers.
Adams State could only hit 29 percent of its field-goal attempts and was 6 of 16 from the free-throw line.
Point guard Jaylen Fisher, who reopened his recruitment after coaching changes at UNLV, has committed to TCU over a long list of schools.
Forward Kennedy Meeks, who has averaged 9.4 points and 6.5 rebounds at North Carolina, has pulled out of the NBA draft and will return to the Tar Heels.
Cal big man Ivan Rabb could have been selected in the top 10 of the NBA draft. Instead, he's returning to Berkeley to make himself, and the Golden Bears, stronger.