Noun

(en noun)

(logic) The negation in logic.

A refusal to comply with a request.

An assertion of untruth.

Refusal to believe a problem exists

*{{quote-magazine, date=2013-06-28, author=(Joris Luyendijk)

, volume=189, issue=3, page=21, magazine=(The Guardian Weekly) , title= Our banks are out of control , passage=Seeing the British establishment struggle with the financial sector is like watching an alcoholic […].  Until 2008 there was denial over what finance had become. When a series of bank failures made this impossible, there was widespread anger, leading to the public humiliation of symbolic figures.}}

(dated, psychology) A defense mechanism involving a refusal to accept the truth of a phenomenon or prospect.

* 2007 Feb. 11, " No facts, just emotion," Washington Times (retrieved 11 June 2013):

"Denial " came out of the therapyspeak prevalent in the middle of the 20th century, especially as it was applied to confronting the reality of mortality. It was popularized as the first stage of grief, and quickly expanded to include refusal to confront any bad news or disturbing ideas.

Noun

Epistemologically necessary lack of, indifference to, denial or shunning of, or defective knowledge.

* 1915 : The American Journal of Surgery , volume 29, page 379^{{1} & {2}} (Paul B. Hoeber)

^{1} And finally, we come to the agnosis , the most important of them all,

^{2} I do not refer to the agnosis or the ignorance of cancer in general.

* 1934 : the New York Neurological Association, the Philadelphia Neurological Society, and the Boston Society of Psychiatry and Neurology, Journal of Nervous and Mental Disease , volume 80, page 648

For instance he cannot tell the time on the clock, since that depends on the relation of the direction of the hands to each other. This inability to differentiate the directions in relation to each other is a possible cause of optical agnosis . There is a direction element in the form of every object.

* 1963 : Samuel Brock and Howard P. Krieger, The Basis of Clinical Neurology: The Anatomy and Physiology of the Nervous System in Their Application to Clinical Neurology , fourth edition, page 308 (Williams & Wilkins)

They point out that unilateral spatial agnosis is not the sole cause of the disability, and that some degree of bilateral cerebral involvement may be an

* 2005 : Paul J. Griffiths and Reinhard Hütter, Reason and the Reasons of Faith , page 331] ([http://www.continuumbooks.com/Books/detail.aspx?ImprintID=2&CountryID=2&BookId=121814 Continuum International Publishing Group; ISBN 0567028305, 9780567028303)

The situation of the person who denies that metaphysical objectivity that is essential to the very idea of truth is not only one of self-contradiction, but of permanent agnosis .