A person who is not a science fiction fan; by extension, a person who is an outsider to some group.
- 1959 R.H. Eney Fancyclopedia II № 48: Dressed-up Mundanes, hackwork in which fantastic elements could be replaced with non-fantastic ones without changing the plot essentially.
- 1969 H. Warner, Jr. All Our Yesterdays № 145: He claimed that he was immediately honored by fourteen fans and eight mundanes at a banquet staged for him by the Oak Grove Science Fiction Society.
- 1986 A. Thompson Locus (Nov.) № 29/2: 5500 fans, pros, writers, and a few confused mundanes attended ConFederation.
- 1992 G. Wolfe Aussiecon Two Guest of Honor Speech Castle of Days (1995) № 429: Some have announced with even greater pride that they never read fantastic literature, or that they haven't read a word of it for the past five or ten years — that they are in fact closet mundanes.
- 1991 E. Raymond New Hacker's Dictionary № 1: Not knowing the slang (or using it inappropriately) defines one as an outsider, a mundane.
- 2004 S.E. Glasgow e-National Fantasy Fan (Mar.) № 17: Whenever I felt misunderstood by "mundanes" there was all of you who understood me.
