sim·ple-mind·ed
adj. 1. Lacking in subtlety or sophistication; artless or naive: a simple-minded horror movie; simple-minded generalizations.
What is simple mindedness?
: devoid of subtlety : unsophisticated also : foolish. Other Words from simpleminded Synonyms & Antonyms Example Sentences Learn More About simpleminded.
What is a word for someone who is simple-minded?
brainless, childlike, crude, dumb, idiotic, ignorant, moronic, naive, slow, stupid, uncomplicated, unschooled, unstudied, unworldly, feeble-minded, clueless, untutored.