dialetheism /ˌdaɪ.əˈlɛθ.i.ɪz.əm/ noun1 •The theory that statements can be both true and false at the same time and in the same sense. The opposite of the law of noncontradiction.[It] is important to point out that endorsing dialetheism is not the same as rejecting logic or rational argumentation. — 2005 formsdialetheisms