on the borderline (adjective, adverb) on the brink: at the point of a major change
Sinonime: benighted, catachrestic,
ignorant, inerudite, solecistic,
uneducated,
unenlightened, ungrammatical, uninstructed, unlearned, unlettered, unread, unschooled, untaught, untutored
Antonime: able,
educated,
learned,
literate,
taught