UNAUTHORIZED definition and meaning | Collins English Dictionary If something is unauthorized, it has been produced or is happening without official permission a new unauthorized biography of the Russian President the unauthorized use of a military vehicle It has also been made quite clear that the trip was unauthorised
“Unauthorized” or “Unauthorised”—Whats the difference? | Sapling Unauthorized and unauthorised are both English terms Unauthorized is predominantly used in 🇺🇸 American (US) English (en-US) while unauthorised is predominantly used in 🇬🇧 British English (used in UK AU NZ) (en-GB) In the United States, there is a preference for " unauthorized " over "unauthorised" (98 to 2)