doublethink

noun

ordinary people simultaneously accepting two mutually contradictory beliefs as correct

Etymology: From double + think. Coined by George Orwell in 1949 as part of the Newspeak in his novel Nineteen Eighty-Four.

The holding of two contradictory beliefs in one's mind simultaneously and accepting both of them as true or correct, without acknowledging the contradiction.
“The stars can be near or distant, according as we need them. Do you suppose our mathematicians are unequal to that? Have you forgotten doublethink?”
“Any effort by the United States to halt these creeping advances of Communist imperialism became, by the same mad process of double-think, the only kind of "intervention" there ever could be.”

Etymology: From double + think. Coined by George Orwell in 1949 as part of the Newspeak in his novel Nineteen Eighty-Four.

To engage in doublethink.
“"So we both doublethought our way around the inevitable as long as we could because we both really want the same thing and we both have policy problems with our superiors.” “I'm not sure I follow you,” Lindblad said, in a tone of voice[…]”
“... but, as they believed they had other reasons for supporting the invasion – be they moral, monetary or something else entirely – they doublethunk (or doublethought) it and endorsed the 'evidence' despite its lack of merit.”