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Webster 1828 Edition

Adj.

Not instructed or taught; not educated.

Not directed by superior authority; not furnished with instructions.

uninstructed ‎(comparative more uninstructed, superlative most uninstructed)

Not instructed
- Sir Walter Scott
  like an uninstructed bowler who thinks to attain the jack by delivering his bowl straight forward upon it
(archaic) uneducated
the uninstructed poor