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Noun: imbecility  ,im-bi'si-li-tee
  1. Retardation more severe than a moron but not as severe as an idiot
  2. A stupid mistake
    - stupidity, bĂȘtise, folly, foolishness

Derived forms: imbecilities

Type of: backwardness, error, fault, mental retardation, mistake, retardation, slowness, subnormality

Encyclopedia: Imbecility