unfenced

“Near-synonym: free-range”

“Ireland must have remained utterly unfenced and, therefore, uncultivated, for many a century; and the sparse tribes that inhabited the country must have principally subsisted venatically.”

“The line is unfenced, except in the vicinity of stations, and runs across the treeless Mesaorian plain for the whole distance between Famagusta and Nicosia.”

“It was a rural railway that served the fertile Fens of Cambridgeshire and Norfolk. But because it flanked public roads and was unfenced (to save costs), it was deemed a tramway and its locomotives had to be fitted with a cowcatcher.”

“She [Nature] has made the hinder part of the Head, more strong, as being otherwise unfenced against falls and other casualties.”