[Houghton M.]

In the root sense of the word “idiot,” that is, unlearned, uninformed, naive.

[no dems]

Synonyms for “idiot” : fool, half-wit; imbecile; dolt, dunce, numskull

And, in researching this, I was surprised to find that “numskull” was not spelled “numbskull”. Look at me; ever learning. Thanks Houghton.