1. (noun) deceleration, slowing, retardation
a decrease in rate of change
Synonyms: slowness, subnormality, slowing, slowdown, mental retardation, retardant, backwardness, lag, deceleration, retardent, retardation Antonyms: acceleration, speedup, quickening
2. (noun) deceleration
(physics) a rate of decrease in velocity
Synonyms: slowing, retardation Antonyms: acceleration, quickening, speedup
3. (noun) deceleration
the act of decelerating; decreasing the speed
Synonyms: slowing, retardation Antonyms: acceleration, speedup, quickening
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