mental defectiveness

English Thesaurus

1. retardation sufficient to fall outside the normal range of intelligence (noun.cognition)

hypernym	:	backwardness, mental retardation, retardation, slowness, subnormality,
definition	:	lack of normal development of intellectual capacities (noun.cognition)

hyponym	:	feeblemindedness,
definition	:	severe mental deficiency (noun.cognition)

derivation	:	abnormal,
definition	:	departing from the normal in e.g. intelligence and development (adj.all)

derivation	:	abnormal,
definition	:	departing from the normal in e.g. intelligence and development (adj.all)