Definition of grandisonant in US English:

grandisonant

adjective

  • Grand-sounding, giving the impression of grandeur; rhetorical; bombastic.

Origin

Late 17th century; earliest use found in S. E. (fl. 1684). From classical Latin grandisonus + -ant, after e.g. resonant, dissonant, altisonant.

Pronunciation

grandisonant

/ɡranˈdɪsənənt/