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

• underthings
• undertide
• undertone
• undertow
• undervaluation
• undervalue
• undervest
• underwater
• underwater archaeology
• underwater archeology
• underwater diver
• underway
• underwear
• underweight
• underwhelm
• underwing
• underwood
• underworld
• underwrite
• underwriter
• undescended
• undescended testicle
• undescended testis
• undescriptive
• undeserved