All speed-up antonyms
speed-up
S s noun speed-up
- deceleration — to decrease the velocity of: He decelerates the bobsled when he nears a curve.
- drop-off — a vertical or very steep descent: The trail has a drop-off of several hundred feet.
- downtrend — a downward or decreasing tendency, movement, or shift: a downtrend in gasoline consumption; a downtrend in stock prices.
- falloff — a decline in quantity, vigor, etc.