incontrovertibility

from WordNet (r) 3.0 (2006)

incontrovertibility
    n 1: the quality of being undeniable and not worth arguing about
         [syn: {incontrovertibility}, {incontrovertibleness},
         {positivity}, {positiveness}]

from The Collaborative International Dictionary of English v.0.48

Incontrovertibility \In*con`tro*ver`ti*bil"i*ty\, n.
   The state or condition of being incontrovertible.
   [1913 Webster]

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