1) Absolutely pristine 2) Having no paths or trails 3) Inaccessible 4) Lacking pathways 5) Like virgin ground 6) Not printed up 7) Not traversed 8) Not trod 9) Pathless 10) Roadless 11) Trackless 12) Unaccessible 13) Untracked 14) Untraversed 15) Untrodden 16) Virgin Found on https://www.crosswordclues.com/clue/untrod