adj. Unturned with a plough, and thus retaining its original vegetation (usually grass).
adj. Unexplored or unknown.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. (of farmland) not plowed
Word Usage
"Most of the remaining unploughed habitat is represented by strongly modified and fragmented communities on relief positions (gullies, areas around lakes and hill slopes) or soil types (sandy or salty soils), that are not suitable for ploughing."