retarded

  1. Adjective.  Delayed; delayed in development, hindered; impeded. (defdate, from 17th c.) .
  2. Adjective.  (context, psychology) Having mental retardation, characterised by learning difficulties (specifically having an IQ below 70); now more generally, mentally deficient. (defdate, from 19th c.) .
  3. Adjective.  (context, chiefly) Underdeveloped (of a person's intelligence, abilities etc.). (defdate, from 20th c.) .
  4. Adjective.  (North America, colloquial) Stupid, dumb. (defdate, from 20th c.) .
  5. Adjective.  (physics) Designating a parameter of an electromagnetic field which is adjusted to account for the finite speed of radiation. (defdate, from 20th c.) .
  6. Verb.  (past of, retard) .

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This entry was last updated on RefTopia from its source on 3/20/2012.