Wildcats coach Jeff Mittie announced the move Wednesday.
Willock appeared in 31 games last season, helping the Wildcats beat Drake in the first round of the NCAA Tournament before losing to Stanford. The 6-foot-4 forward from Scarborough, Canada, averaged 6.6 points and 5.1 rebounds in 19.9 minutes, and was expected to be a key piece of this year’s team.
Willock was suspended in April after being accused of criminal trespass and liquor purchase by a minor.
Mittie said Willock “struggled with many things associated with being a student-athlete” and “her continued violations of team rules and standards has led to her dismissal.”