grandioso
/ˈɡrandɪˈəʊsəʊ/ /ˈɡrandɪəʊzəʊ/Chiefly Music
adjective
Grand; imposing; specifically of a musical passage, movement, or composition: (to be) performed in a grand or imposing manner.
noun
1Chiefly with the. Grand or imposing style or quality. Now rare.
2A musical passage, movement, or composition played or performed in a grand or imposing manner.
adverb
Chiefly as a musical direction: (to be performed) in a grand or imposing manner.
Origin
Late 18th century. From Italian grandioso. In some uses perhaps also influenced by Spanish grandioso.