vicennial /vī-senˈyəl/

1. Lasting, or coming at the end of, twenty years
2. Occurring every twenty years

• intercutting
• interdash
• interdashed
• interdashes
• interdashing
• interdeal
• interdealer
• interdealers
• interdealing
• interdeals
• interdealt
• interdenominational
• interdenominationally
• interdental
• interdentally
• interdepartmental
• interdepartmentally
• interdepend
• interdepended
• interdependence
• interdependency
• interdependent
• interdependently
• interdepending
• interdepends