perättömyys
virhe, harhaluulo
epätotuus, virheellisyys
Something that is false; an untrue assertion.
(ux)
The characteristic of being untrue.
{{quote-text|en|year=1949|author=George Orwell|title=Nineteen Eighty-Four|section=Part Two, Chapter 9|url=http://www.gutenberg.net.au/ebooks01/0100021h.html