An assertion of untruth. / (logic) The negation in logic. / A refusal or failure to provide or grant something that is requested or desired. / Refusal to believe that a problem exists.

plural of denialism

The practice of rejecting propositions which are strongly supported by scientific or historical evidence, and often of seeking to influence policy processes and outcomes accordingly.

plural of denial

(idiomatic) A statement which appears to deny that something is true, but which, when examined carefully, can be seen to have used diversion, bluster, or ambiguity to avoid making a clear, direct denial.

plural of non-denial denial

Action that sacrifices one's own benefit for the good of others.

plural of self-denial

(medicine, psychology) A condition whereby a pregnant woman refuses to accept or recognise her pregnancy.

(military, of devices, typically weapons) Intended to prevent an adversary from occupying or traversing a certain area of land.