mental deficiency vs retardation

mental deficiency and retardation both are nouns.

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

As nouns, retardation is a hypernym of mental deficiency; that is, retardation is a word with a broader meaning than mental deficiency:

mental deficiency: mild mental retardation
retardation: lack of normal development of intellectual capacities

Other hypernyms of mental deficiency include backwardness, mental retardation, slowness, subnormality.

mental deficiency (noun)	retardation (noun)
mild mental retardation	the act of slowing down or falling behind
	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

mental deficiency vs retardation

mental deficiency and retardation both are nouns.

Words related to "mental deficiency"

Words related to "retardation"