officialese
Word family (noun) office officer official officialdom officialese officiousness (adjective) official ≠ unofficial officious (verb) officiate (adverb) officially ≠ unofficially officiously
From Longman Dictionary of Contemporary EnglishRelated topics: Linguistics, Officialsofficialeseof‧fi‧cial‧ese /əˌfɪʃəlˈiːz/ noun [uncountable] informal SLPGOa way of talking or writing used by government officials, that is unnecessarily difficult to understand