From Longman Dictionary of Contemporary Englishdoublethinkdoub‧le‧think /ˈdʌbəlˌθɪŋk/ noun [uncountable] British English DISHONESTa dishonest belief in two opposing ideas at the same time
Examples from the Corpus
doublethink• The Palace of the People was, of course, a massive exercise in doublethink.• It seems that George Orwell's doublethink is well and truly alive in Nottingham. 