Definition of "unfallen"

The unfallen world beyond time remains as a background to the figured beats of the heart in our world of serial progression.

1981, William Irwin Thompson, The Time Falling Bodies Take to Light:Mythology, Sexuality and the Origins of Culture, page 10

For me, in any case, Ladakh seemed a beautifully unfallen place next to the blue-glass shopping malls of modern Lhasa, the global village of pizza joints and guesthouses that is urban Nepal, or long-isolated Bhutan with its chic new hotels.

2009 March 13, Pico Iyer, “Heaven’s Gate”, in New York Times‎