simpleminded

[sim-puh l-mahyn-did, -mahyn-] /ˈsɪm pəlˈmaɪn dɪd, -ˌmaɪn-/
adjective
1.
free of deceit or guile; artless or unsophisticated.
2.
lacking in mental acuteness or sense.
3.
mentally deficient.
Also, simple-minded.
Origin
1735-45; simple + minded
Related forms
simplemindedly, adverb
simplemindedness, noun
Synonyms
2, 3. stupid, foolish, slow, dull-witted, half-witted.
Examples from the web for simpleminded
  • Oh, don't get me wrong: none of us was simpleminded enough to take those ads literally.
  • The story, though minimized by production, is undeniably simpleminded.
  • Some might object that it is simpleminded to say that a policy of deference leaves the majority to judge its own cause.
  • One thing that will not change: the simple, almost simpleminded prose.