Meaning

adjective marked by continuous or uninterrupted extension in space or time or sequence

adjective not subdued or trained for service or use

adjective (of farmland) not plowed

originFrom Middle English unbroken, from Old English unġebrocen (“unbroken”), equivalent to un- + broken. Cognate with Dutch ongebroken (“unbroken”), German Low German unbroken (“unbroken”), German ungebrochen (“unbroken”).

Etymology from Wiktionary, CC BY-SA 3.0