Definition of grandiloquous in English:

grandiloquous

adjective

rare
  • Grandiloquent.

Origin

Late 16th century; earliest use found in Gabriel Harvey (c1552–1631), scholar and writer. From classical Latin grandiloquus using a grand or lofty style, speaking in an arrogant tone + -ous.

Pronunciation

grandiloquous

/ɡranˈdɪləkwəs/