the mind > mental capacity > knowledge > want of knowledge, ignorance > want of learning, illiteracy > [adjective] > at cultural stage (2)
preliterate1923
Chiefly Social Sciences. Of an individual, social group, or culture: having no written language; living before the development of writing. Cf. non-lit…
non-literate1948
Of, belonging to, or designating a society that has no written language.