unversed

From un- +‎ versed.

unversed (comparative more unversed, superlative most unversed)

1. Inexperienced, untrained.
   • 1951 April, R. S. McNaught, “Railway Enthusiasts”, in Railway Magazine, number 600, page 269:

     Or what is conveyed to those unversed in railway matters by reports following a shed visit that "the frame of Claud Hamilton lay in the boneyard and had many endearing messages of farewell chalked on it"?

2. Not expressed in verse, unversified.

• unserved