Synonyms of retardation

Noun

1. deceleration, slowing, retardation, change, alteration, modification

usage: a decrease in rate of change; "the deceleration of the arms race"

2. retardation, delay, hold, time lag, postponement, wait

usage: the extent to which something is delayed or held back

3. retardant, retardent, retardation, agent

usage: any agent that retards or delays or hinders; "flame-retardant"

4. retardation, mental retardation, backwardness, slowness, subnormality, stupidity

usage: lack of normal development of intellectual capacities

5. slowdown, lag, retardation, delay, holdup

usage: the act of slowing down or falling behind

Definition and meaning of retardation (Dictionary)