unfun

From un- +‎ fun.

• Rhymes: -ʌn

unfun (comparative more unfun, superlative most unfun)

1. Not fun.
   • 2006, Aimee Friedman, French Kiss, page 14:

     Poor Holly had the massive misfortune of having an assistant principal for a mother, which, Alexa knew, made her life unfun both in and out of school.

   • 2007 July 1, Mark Sarvas, “Beauty and the Geek”, in New York Times‎^[1]:

     (“Denis stood at attention, like a waiter in an unfun restaurant”).

unfun (uncountable)

1. Lack or absence of fun; funlessness.
   • 1986 April 26, Michael Bronski, “Note This!”, in Gay Community News, page 19:

     I love going to the theater but the third week of February was putting a major damper on the experience. First it was Big Deal — a dismal evening of overblown un-fun — then Glengarry Glen Ross in which a lot of straight men talked dirty and made real estate deals.

• un-fun