Definition of "pompous"

But man is a Noble Animal, splendid in ashes, and pompous in the grave, solemnizing Nativities and Deaths with equal lustre, nor omitting Ceremonies of bravery, in the infamy of his nature.

1658, Sir Thomas Browne, Hydriotaphia, Urn Burial

Not that the parting speech caused Amelia to philosophise, or that it armed her in any way with a calmness, the result of argument; but it was intolerably dull, pompous, and tedious; and having the fear of her schoolmistress greatly before her eyes, Miss Samuel did not venture, in her presence, to give way to any ebullitions of private grief.

1847 January – 1848 July, William Makepeace Thackeray, Vanity Fair […], London: Bradbury and Evans […], published 1848