As an adjective pathless
is without a path or trail.
As a noun pathlessness is
the state or condition of being pathless.
pathless
English
Adjective
(
en adjective)
Without a path or trail.
(figurative) unexplored
Synonyms
* (unexplored) trackless, uncharted, unknown, virgin
pathlessness
English
Noun
(-)
The state or condition of being pathless.