noun (n)

• retardation more severe than a moron but not as severe as an idiot

  pembantutan lebih parah daripada orang tolol tidak sebagai berat sebagai idiot

  source: wordnet30
• a stupid mistake

  kesalahan bodoh

  Synonym:
  betise, folly, foolishness, stupidity
  

  source: wordnet30
• The quality of being imbecile; weakness; feebleness, esp. of mind.

  kualiti menjadi dungu; kelemahan; feebleness, esp. pikiran.

  source: webster1913