unreason

play
noun un·rea·son \ˌən-ˈrē-zən, ˈən-ˌrē-\

Definition of unreason

  1. :  the absence of reason or sanity :  irrationality, madness

1827

First Known Use of unreason

1827

Learn More about unreason


Seen and Heard

What made you want to look up unreason? Please tell us where you read or heard it (including the quote, if possible).