- Those with an IQ range of 70-80 were considered "borderline deficient."
- An IQ of 50-69 meant you were officially a "moron."
- IQs between 20-49 qualified you as an "imbecile."
- And the those below 20 were "idiots."
And a "cretin," by the way, is a person suffering from "a congenital condition caused by a deficiency of thyroid hormone during prenatal development and characterized in childhood by dwarfed stature, mental retardation, dystrophy of the bones, and a low basal metabolism." It's also known as congenital mysedema.