Half-wit
Part of speech: noun
Definition: A person of around half the average intelligence of his or her peers A stupid or inept person
Idiot
Part of speech: noun
Definition: A common term for a person of low general intelligence.A medical or psychological term meaning a person who lacks the capacity to develop beyond the mental age of a normal four-year-old.
Example sentence: You're an idealist, and I pity you as I would the village idiot.