English edit

Etymology edit

rational +‎ -ness

Noun edit

rationalness (uncountable)

  1. (archaic) The quality or state of being rational.
    • 1861 August 31, “The New Papacy”, in The Nation, volume 13, number 322, retrieved 5 December 2011, page 142:
      And what difference is there between the credibleness and rationalness of any of these wonders and the credibleness and rationalness of Papal infallibility?

Synonyms edit

References edit