- inability or unwillingness to think or act rationally, reasonably, or sensibly; irrationality.
- lack of reason or sanity; madness; confusion; disorder; chaos: a world torn by unreason.
- to upset or disrupt the reason or sanity of: The devious plot soon unreasoned the general.
Origin of unreason
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for unreason
In The Embrace of Unreason, Frederick Brown weaves a warning for America from the story of the divided French.
It is that phenomenon that Frederick Brown explores in his brilliant new book, The Embrace of Unreason: France, 1914-1940.
Like the Furies, the Cheneys stand for unreason and emotionalism.Cheney Blood Lust
October 22, 2009
Indeed it would be the height of unreason to expect him to be sitting there without that head.Little Dorrit
And, doctor, I want to apologize for my anger and unreason this morning.The Girls at Mount Morris
Amanda Minnie Douglas
You will live bitterly to regret the haste and the unreason of it.'Robert Elsmere
Mrs. Humphry Ward
The unreserve and unreason of her passion at last disgusted him.A Spoil of Office
My own matriculation at Eugene's College of Unreason was in this wise.The Holy Cross and Other Tales
- irrationality or madness
- something that lacks or is contrary to reason
- lack of order; chaos
- (tr) to deprive of reason