Declamatory (Adjective)

Ostentatiously lofty in style; "a man given to large talk"; "tumid political prose".

All adjective clusters.

The politician's speech was full of declamatory phrases, but lacked any real substance or policy details.
His writing style was often criticized for being too declamatory, with overly complex vocabulary and convoluted sentence structures.
The professor's lectures were notorious for their declamatory tone, which often left students feeling confused and intimidated.
The company's mission statement was a declamatory document, full of lofty language and vague promises, but lacking in concrete goals or objectives.
The novelist's use of declamatory language was seen as a major flaw in her writing, as it often came across as insincere or overly dramatic.