1. Too obvious to be doubted
   - indubitable

1. In a manner or to a degree that could not be doubted
   - indubitably, beyond a doubt, beyond a shadow of a doubt, indisputably

See also: unquestionable

• premillennial
• premillennialism
• premise
• premises
• premiss
• premium
• Premium Bond
• premix
• premolar
• premonition
• premonitory
• Prenanthes
• Prenanthes alba
• Prenanthes purpurea
• Prenanthes serpentaria
• prenatal
• prenatal diagnosis
• prenominal
• prenotion
• prentice
• prenuptial
• prenuptial agreement
• preoccupancy
• preoccupation
• preoccupied