Un·skill·ful a.
1. Not skillful; inexperienced; awkward; bungling; as, an unskillful surgeon or mechanic; an unskillful logician.
2. Lacking discernment; injudicious; ignorant.
Though it make the unskillful laugh, can not but make the judicious grieve. --Shak.
-- Un*skill*ful*ly, adv. -- Un*skill*ful*ness, n.
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unskillfulness
n : a lack of cognitive skill [ant: skillfulness]