infestivity

From in- +‎ festivity.

infestivity (uncountable)

1. A lack of festivity, cheerfulness, or mirth.
   • 1880–1881, Thomas Hardy, chapter XV, in A Laodicean; or, The Castle of the De Stancys. A Story of To-day. […], volume I, London: Sampson Low, Marston, Searle & Rivington, […], published 1881, →OCLC, book the first (George Somerset), page 231:

     Her days of infestivity were plainly ended, and her days of gladness were to begin.

   • 1903, Frederic Stewart Isham, Under the Rose, →ISBN (2009 reprint), p. 70:

     Moreover, Caillette experienced a superior sadness, sifted through years of infestivity and gloom.

   • 1989, Robert McLiam Wilson, Ripley Bogle, Arcade, published 1998, →ISBN, page 256:

     May Week. . . . As in every year, that infamous week was dragging its boorish heels with remarkable infestivity.