imbecilic

English Thesaurus

1. having a mental age of three to seven years (adj.all)

similar	:	retarded,
definition	:	relatively slow in mental or emotional or physical development (adj.all)

derivation	:	imbecility,
definition	:	retardation more severe than a moron but not as severe as an idiot (noun.cognition)

derivation	:	changeling, cretin, half-wit, idiot, imbecile, moron, retard,
definition	:	a person of subnormal intelligence (noun.person)

derivation	:	imbecility,
definition	:	retardation more severe than a moron but not as severe as an idiot (noun.cognition)

derivation	:	changeling, cretin, half-wit, idiot, imbecile, moron, retard,
definition	:	a person of subnormal intelligence (noun.person)