magnum opus /magˈnəm ōˈpəs, magˈnŭm opˈŭs/ (Latin)

1. A great work, esp of literature or learning
2. A writer's greatest achievement or the culmination of his or her efforts

• unveracity
• unverifiabilities
• unverifiability
• unverifiable
• unverified
• unversed
• unvetted
• unvexed
• unviable
• unviewed
• unviolated
• unvirtue
• unvirtues
• unvirtuous
• unvirtuously
• unvisitable
• unvisited
• unvisor
• unvisored
• unvisoring
• unvisors
• unvital
• unvitiated
• unvitrifiable
• unvitrified