ADJ-GRADED 一本正经的;卖弄词藻的;夸张的;做作的Grandiloquent language or behaviour is very formal, literary, or exaggerated, and is used by people when they want to seem important. 一本正经的;卖弄词藻的;夸张的;做作的 [formal, disapproval]
She attacked her colleagues for indulging in 'grandiose and grandiloquent language'.