" trackless "

1: not having been traveled over or through;

  * e.g., " ... the trackless desert is no place for unequipped, unprepared travelers "

•  Synonyms : 

•  pathless,

•  untraveled,

•  untraversed,

•  untrodden

•  Antonyms : 

•  traveled,

•  trod

1: a mark or series of marks left on a surface by something that has passed along it;

  * e.g., " ... a muddy track across the kitchen floor "

•  Synonyms : 

•  imprint,

•  trace,

•  trail

•  Antonyms : 

• (N/A)

2: a rough course or way formed by or as if by repeated footsteps;

  * e.g., " ... there was still a faint track through the underbrush that indicated where the path used to be "

•  Synonyms : 

•  footpath,

•  path,

•  pathway,

•  trace,

•  trail

•  Antonyms : 

• (N/A)

3: the direction along which something or someone moves;

  * e.g., " ... I followed the track of the thief's eyes as he watched the woman put the money into her purse and walk away "

•  Synonyms : 

•  course,

•  line,

•  path,

•  pathway,

•  route,

•  routeway,

•  steps,

•  way

•  Antonyms : 

• (N/A)