One word substitution for "a person who cannot read or write":

  • A. Ignorant
  • B. Illiterate
  • C. Illegible
  • D. Illegitimate

Explanation

"Illiterate" describes a person unable to read or write. "Illegible" describes handwriting that cannot be read, and "ignorant" means lacking knowledge generally — a literate person can still be ignorant.

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