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

• superordinate word
• superordination
• superoxide
• superoxide anion
• superoxide dismutase
• superpatriotic
• superpatriotism
• superphosphate
• superphylum
• superposable
• superpose
• superposition
• superposition principle
• superpower
• supersaturate
• supersaturated
• supersaturation
• superscribe
• superscript
• superscription
• supersede
• supersedeas
• supersedure
• supersensitised
• supersensitive