IDIOT
idiot, imbecile, cretin, moron, changeling, half-wit, retard
(noun) a person of subnormal intelligence
Source: WordNet® 3.1
Etymology
Noun
idiot (plural idiots)
(pejorative) A person of low general intelligence.
(pejorative) A person who makes stupid decisions; a fool.
(obsolete, medicine, psychology) A person of the lowest intellectual standing, a person who lacks the capacity to develop beyond the mental age of a normal four-year-old; a person with an IQ below 30.
Usage notes
• While pejorative, the word is only a weak insult, and between close friends or family members it may be used affectionately.
Synonyms
• See also idiot
Antonyms
• genius
Adjective
idiot (comparative more idiot, superlative most idiot)
(uncommon) idiotic, stupid
Etymology
Noun
IDiot (plural IDiots)
(slang, derogatory) A proponent of intelligent design.
Source: Wiktionary
Id"i*ot, n. Etym: [F. idiot, L. idiota an uneducated, ignorant, ill-
informed person, Gr. Idiom.]
1. A man in private station, as distinguished from one holding a
public office. [Obs.]
St. Austin affirmed that the plain places of Scripture are sufficient
to all laics, and all idiots or private persons. Jer. Taylor.
2. An unlearned, ignorant, or simple person, as distinguished from
the educated; an ignoramus. [Obs.]
Christ was received of idiots, of the vulgar people, and of the
simpler sort, while he was rejected, despised, and persecuted even to
death by the high priests, lawyers, scribes, doctors, and rabbis. C.
Blount.
3. A human being destitute of the ordinary intellectual powers,
whether congenital, developmental, or accidental; commonly, a person
without understanding from birth; a natural fool; a natural; an
innocent.
Life . . . is a tale Told by an idiot, full of sound and fury,
Signifying nothing. Shak.
4. A fool; a simpleton; -- a term of reproach.
Weenest thou make an idiot of our dame Chaucer.
Source: Webster’s Unabridged Dictionary 1913 Edition