The definition of simple-minded is someone who is unsophisticated, foolish or mentally impaired.
(adjective)An example of someone who would be described as simple-minded is a person who cannot understand or grasp most concepts and who is lacking in insight.
See simple-minded in Webster's New World College Dictionary
adjective
Related Forms:
See simple-minded in American Heritage Dictionary 4
or sim·ple·mind·ed
adjectiveRelated Forms:
Learn more about simple-minded