Officialese

Not to be confused with official language, a language that is given a special legal status in a particular country, state, or other jurisdiction..

Officialese or bureaucratese is a derogatory term for language that sounds official. It is the "language of officialdom". Officialese is characterized by a preference for wordy, long sentences; a preference for complex words, code words or buzzwords over simple, traditional ones; a preference for vagueness over directness and a preference for passive over active voice (some of those elements may, however, vary between different times and languages). The history of officialese can be traced to the history of officialdom, as far back as the eldest human civilizations and their surviving official writings.