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.
what word is opposite of prudent
The opposite of anything is it's absence. Silence would be the opposite of a word spoken.
There is no opposite to cobble.
The word 'surf' does not have a opposite word.
An antonym (opposite) of the word rivalry is cooperation.
There is the word, "Boost", and there is the word, "Blastoff", or "Takeoff", but no word to boost off, since that really doesn't mean anything.
The word "boost" has four phonemes: /b/ /oo/ /s/ /t/.
what word is opposite of prudent
The opposite of anything is it's absence. Silence would be the opposite of a word spoken.
which is the opposite to the word satisfaccion
There is no opposite to cobble.
This word does not have an opposite.
The opposite of the word "answer" is "question."
The word 'surf' does not have a opposite word.
Opposite word of light
If by 'opposite' you mean the word for someone of the opposite sex who has the same state or condition expressed in the word, then the opposite of 'bachelorette' is 'bachelor'.
An antonym (opposite) of the word rivalry is cooperation.