The word "un-traversed" can mean "untrodden," "unexplored," or "uncrossed" when describing a place or route that has not been travelled. "Uncharted," "unfrequented," and "undiscovered" are other synonyms that convey a sense of novelty or mystery. When referring to an idea or subject that is unfamiliar or not well-known, "unfamiliar," "untested," and "unacquainted" may be used. "Unfathomed," "unplumbed," and "unknown" are also options that suggest an unknown depth or extent. Overall, there are numerous synonyms that can be used in place of "un-traversed" depending on the context in which it is being used.