[f. as prec. + -NESS.] The quality or fact of being fallacious.
1681. H. More, Exposition of … Daniel, 34. Some also think that the levity, uncertainty, and fallaciousness of the Greek Nation is perstringed in the diversity of Spots in the Leopard’s Skin.
1752. Johnson, The Rambler, No. 203, 25 Feb., ¶ 2. Every one has so often detected the fallaciousness of hope.
1847. Hare, Vict. Faith, 44. The groundlessness and fallaciousness of a proposition.
