The Collaborative International Dictionary
Mistakenness
Mistakenness \Mis*tak"en*ness\, n. Erroneousness.
Wiktionary
mistakenness
n. The state or condition of being mistaken.
Usage examples of "mistakenness".
The patients themselves were living, vocal witnesses of the visitors’ mistakenness, for each, as he made his way through the assemblage of students, was voicing his thanks for the marvelous results of his particular treatment or operation.