increase
contract, decrease, diminish.
The opposite of acceleration is, Deceleration.
Shrinking young! ;P
The opposite would be to degrade, lessen, diminish, decrease, or reduce.
If you're talking about the word boost that is about speed, its opposite is slow down. But if you're talking about the literal or real meaning of boost (which means increase), the opposite word of that is reduce, decrease or lessen.
The opposite of increase is decrease or reduce.
Decremental... meaning 'decrease'.
Increase, expand, develop.
I'd say a "drastic decrease".
contract, decrease, diminish.
The opposite of acceleration is, Deceleration.
shrink, decrease in size, reduce
KK
Decrease, Decline, Reduce and Deminish... Hope that Helps...
The opposite of build (assemble) is to demolish or disassemble. The opposite of build (raise, increase) would be to decrease, lower, or reduce.
Acceleration can decrease due to friction, air resistance, or an opposing force acting in the opposite direction to the motion. An increase in mass or a decrease in the force applied can also cause acceleration to decrease.
Shrinking young! ;P