retardation vs mental defectiveness

retardation and mental defectiveness both are nouns.

Word	Noun	Adjective	Verb	Adverb
retardation	Yes	No	No	No
mental defectiveness	Yes	No	No	No

As nouns, mental defectiveness is a hyponym of retardation; that is, mental defectiveness is a word with a more specific, narrower meaning than retardation:

retardation: lack of normal development of intellectual capacities
mental defectiveness: retardation sufficient to fall outside the normal range of intelligence

Other hyponyms of retardation include abnormality, mental deficiency, moronity, amentia, idiocy, imbecility, savant syndrome.

retardation (noun)	mental defectiveness (noun)
the act of slowing down or falling behind	retardation sufficient to fall outside the normal range of intelligence
a decrease in rate of change
lack of normal development of intellectual capacities
any agent that retards or delays or hinders
the extent to which something is delayed or held back

retardation vs mental defectiveness

retardation and mental defectiveness both are nouns.

Words related to "retardation"

Words related to "mental defectiveness"