self-seriousness

From self- +‎ seriousness or self-serious +‎ -ness.

self-seriousness (uncountable)

1. The state of being self-serious.
   • 2025 October 11, Nitsuh Abebe, “The Suffix That Tells Us to Ruthlessly Optimize Everything”, in The New York Times Magazine‎^[1], New York, N.Y.: The New York Times Company, →ISSN, →OCLC, archived from the original on 12 October 2025:

     The types that started using “-maxxing” in earnest often did so with such hectoring self-seriousness that it was impossible not to parody.