grandiloquence

Grandiloquence is a lofty, high-flown style of talking that has a lot of fluff but may lack substance. It’s too grand to be eloquent, so grandiloquence is usually annoying.

Grandiloquence comes from the Latin word grandis for, yes, “grand” and loqui for “speak.”Grandiloquence is also related to loquacious (talkative), soliloquy (a solo speech), and other words about talk. Grandiloquence is a type of talk that is pompous and bombastic, full of pretty-sounding words and elegant turns of phrase that add up to nothing. Politicians who say nothing but make it sound important are masters of grandiloquence.

Definitions of grandiloquence
1

n high-flown style; excessive use of verbal ornamentation

Synonyms:
grandiosity, magniloquence, ornateness, rhetoric
Types:
flourish
a display of ornamental speech or language
blah, bombast, claptrap, fustian, rant
pompous or pretentious talk or writing
Type of:
expressive style, style
a way of expressing something (in language or art or music etc.) that is characteristic of a particular person or group of people or period

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.