WordNet (r) 3.0 (2006):

unprocessed
    adj 1: not refined or processed; "unrefined ore"; "crude oil"
           [syn: unrefined, unprocessed, crude] [ant:
           processed, refined]
    2: not altered from an original or natural state; "unprocessed
       commodities" [ant: processed]
    3: not treated or prepared by a special process

Moby Thesaurus II by Grady Ward, 1.0:

36 Moby Thesaurus words for "unprocessed":
   arrested, backward, coarse, crude, embryonic, in embryo, in ovo,
   in the rough, oversimple, reductionistic, reductive, rough,
   roughcast, roughhewn, rude, rudimental, rudimentary, simplistic,
   stunted, unblown, uncultivated, uncultured, uncut, underdeveloped,
   undeveloped, unfashioned, unfinished, unformed, unhewn, unlabored,
   unlicked, unpolished, unrefined, untreated, unworked, unwrought