noun which may take the genitive case particle 'no', na-adjective, noun
ignorant and illiterate; uneducated and illiterate
A yojijukugo describing someone who lacks both learning and literacy. Often used as a strong, somewhat sensitive label. Can function as a noun or adjectival noun.
He is uneducated and illiterate, but his life wisdom is deep.
無学文盲の者にもわかるように説明してください。
Please explain it so that even an uneducated and illiterate person can understand.
Compound of 無学 (uneducated) and 文盲 (illiterate). The exact historical derivation is uncertain, but the combination is a straightforward yojijukugo.