officialese

plural officialeses

1. countableuncountableThe typical language of officials or official documents; legalistic and pompous language.First known use 19th c.

   These were men, the chronicler continued, who ‘spoke pleasantly’, in the smooth officialese that most of Henry's counsellors were accustomed to deploy […]

   2011, Thomas Penn, Winter King, Penguin, published 2012, page 263

   1 more example

   But while using officialese might give your writing the outward appearance of being thorough and correct, that doesn't mean there's anything happening underneath. Officialese is a kind of defense mechanism. It's rooted in the fear of getting something wrong, or leaving something out, or looking stupid.

   2021, Tom Albrighton, How to Write Clearly […] , ABC Business Communications Ltd, →ISBN, page 144

   Synonyms: bureaucratese