backwardness

1. Lack of normal development of intellectual capacities (synset 105654063)
   is a type of: stupidity - a poor ability to understand or to profit from experience
   subtypes:

   • abnormality, mental defectiveness - retardation sufficient to fall outside the normal range of intelligence
   • mental deficiency, moronity - mild mental retardation
   • amentia, idiocy - extreme mental retardation
   • imbecility - retardation more severe than a moron but not as severe as an idiot
   same as: mental retardation, retardation, slowness, subnormality

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