Here’s a fun word that’s probably underused.
gobbledygook (gob·ble·dy·gook): / GOB uhl dee gook /
(1) language, especially written, that is characterized by too much jargon or nonsense, and is therefore difficult or impossible to understand
[A fanciful formation based on an imitation of the sound made by a male turkey.]
Usage: Most people will agree government reports often are full of balderdash and gobbledygook.