1. An issue whose settlement is more important than anything else; and issue that must be settled before anything else can be settled

Type of: issue

• unanticipated
• unapologetic
• unappareled
• unapparelled
• unapparent
• unappealable
• unappealing
• unappealingly
• unappeasable
• unappendaged
• unappetising
• unappetisingness
• unappetizing
• unappetizingness
• unappreciated
• unappreciative
• unappreciatively
• unapprehensive
• unapproachability
• unapproachable
• unappropriated
• unapproved
• unapt
• unarbitrary
• unarguable