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retardation

PRIMARY MEANINGS OF: retardation

1
n
the act of slowing down or falling behind
2
n
lack of normal development of intellectual capacities
FULL DEFINITIONS OF: retardation
1

n the act of slowing down or falling behind

Synonyms:
lag, slowdown
Type of:
delay, holdup
the act of delaying; inactivity resulting in something being put off until a later time

n the extent to which something is delayed or held back

Type of:
delay, hold, postponement, time lag, wait
time during which some action is awaited

n a decrease in rate of change

Synonyms:
deceleration, slowing
Antonyms:
acceleration
an increase in rate of change
Type of:
alteration, change, modification
an event that occurs when something passes from one state or phase to another

n any agent that retards or delays or hinders

Synonyms:
retardant, retardent
Type of:
agent
an active and efficient cause; capable of producing a certain effect
2

n lack of normal development of intellectual capacities

Synonyms:
backwardness, mental retardation, slowness, subnormality
Types:
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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
feeblemindedness
severe mental deficiency
Type of:
stupidity
a poor ability to understand or to profit from experience
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