legalese

/L EH1 G AH0 L IY0 S/
noun
  1. 1

    Technical jargon common in the legal profession, the argot of lawyers.

  2. 2

    Wordy, ostentatious talk or writing that resembles legal writing, especially when confusing to laypeople; bureaucratese; officialese.

Source: https://en.wiktionary.org/wiki/legalese