• WordNet 3.6
    • adj unmalted of grain that has not been converted into malt "unmalted barley"
    • ***


In literature:

Malt to be sold or exported must not be fraudulently mixed with unmalted grain to lower duties payable or else forfeit 5s.
"Our Legal Heritage, 5th Ed." by S. A. Reilly
It is produced during the malting process, and is not found in the unmalted barley.
"Elements of Agricultural Chemistry" by Thomas Anderson