TRACKLESS
pathless, roadless, trackless, untracked, untrod, untrodden
(adjective) lacking pathways; “trackless wilderness”; “roadless areas”
trackless
(adjective) having no tracks; “a trackless trolley”; “the trackless snowy meadow”
Source: WordNet® 3.1
Etymology
Adjective
trackless (comparative more trackless, superlative most trackless)
Not having tracks or paths; untrodden.
Not following a track.
(of a train etc.) Not running on tracks.
Source: Wiktionary
Track"less, a.
Definition: Having no track; marked by no footsteps; untrodden; as, a
trackless desert.
To climb the trackless mountain all unseen. Byron.
– Track"less*ly, adv.-Track"less*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition