uncharted

English edit

uncharted (comparative more uncharted, superlative most uncharted)

not surveyed or mapped
- 1979, Douglas Adams, The Hitchhiker's Guide to the Galaxy:
  Far out in the uncharted backwaters of the unfashionable end of the Western Spiral arm of the Galaxy lies a small unregarded yellow sun.
- 2013 November 27, John Grotzinger, “The world of Mars [print version: International Herald Tribune Magazine, 2013, p. 36]”, in The New York Times‎^[1]:
  John Wesley Powell ... the one-armed Civil War veteran led nine men in four wooden dories down the untamed and uncharted Colorado River and into the equally untamed and uncharted Grand Canyon.