The Collaborative International Dictionary of English v.0.48:
Unploughed \Unploughed\ See ploughed.WordNet (r) 3.0 (2006):
unploughed adj 1: (of farmland) not plowed; "unplowed fields"; "unbroken land" [syn: unplowed, unploughed, unbroken] [ant: ploughed, plowed]