Wiktionary
unsailed
a. not sailed, not been visited/explored by boat or ship.
Usage examples of "unsailed".
So many seas unsailed, lands unwalked, girls unloved, risings of Orion and the Cross unseen!
Out of Santa Fe, New Mexico, the MacDuffs turned south along the Rio Grande toward the spot where the seeds of the ancient Caledonian and Athapascan warriors were destined to meet again for the first time, perhaps, since they had set out upon opposite trails from the birthplace of humanity in the days when ferns were trees, and unsailed seas lashed the shores of continents that are no more.
Blaine felt a profound regret for all he had left undone, the waters unsailed, movies unseen, books unread, girls untouched- He was thrown forward.