1. Not open to challenge
   "unchallengeable facts"; "a position of unchallengeable supremacy"

See also: noncontroversial, uncontroversial

• assumable
• assumably
• assume
• assumed
• assumed name
• assuming
• assumpsit
• assumption
• Assumption of Mary
• assumptive
• Assur
• assurance
• Assurbanipal
• assure
• assured
• assuredly
• assuredness
• assurgent
• assuring
• Assyria
• Assyrian
• Assyrian Akkadian
• Assyrian Neo-Aramaic
• Assyriology
• Astacidae