Curtious
I believe you want the word courtesy. Examples: It is common courtesy to say Hello when encountering someone for the first time. His manners showed he was taught courtesy very well.
what word is opposite of prudent
The opposite of anything is it's absence. Silence would be the opposite of a word spoken.
to be kind and do special things for other people
Opposite word of light
which is the opposite to the word satisfaccion
This word does not have an opposite.
The opposite of the word "answer" is "question."
The word 'surf' does not have a opposite word.
There is no opposite to cobble.
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'.