untraversed

Were they isolated here in the untraversed southern seas, cast upon an island unknown to the rest of the world?

In the far horizon were unknown lands, strange shores beyond untraversed seas.

They had already penetrated into seas untraversed by a sail, and where man had never before adventured.

What was there behind the immense and untraversed belt of forest which extended to the south, to the east, and west?

Show that the dark clefts of the most romantic mountain are uninhabited and untraversed; it will cease to be romantic.