dictionary.com - Magniloquent : grandiose in speech

magniloquent: lofty or grandiose in speech or expression.

define: magniloquent [ Google Search ]

lofty, pompous, or grandiose in speech or style of expression (adv.-magniloquently)
www.eldritchdark.com/articles/criticism/69/a-glossary-for-the-fiction-of-clark-ashton-smith

grandiloquent: lofty in style; "he engages in so much tall talk, one never really realizes what he is saying"
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