Definition of "twaddling"

"All which details, I have no doubt, Jones, who reads this book at his Club, will pronounce to be excessively foolish, trivial, twaddling, and ultra-sentimental."

1847 January – 1848 July, William Makepeace Thackeray, chapter 16, in Vanity Fair […], London: Bradbury and Evans […], published 1848

It delighted her to draw out his worldlinesses, and to make the old habitue of clubs and drawing-rooms tell his twaddling tales about great folks, and expound his views of morals.

1848 November – 1850 December, William Makepeace Thackeray, chapter 55, in The History of Pendennis. […], volumes (please specify |volume=I or II), London: Bradbury and Evans, […], published 1849–1850