One example would be blunt. Another would be dull. For example: A dull knife doesn't cut very well.
sharpened
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
The opposite of the word "answer" is "question."
This word does not have an opposite.
There is no opposite to cobble.
The word 'surf' does not have a opposite word.
Opposite word of light
Your canine teeth can be sharpened by going to your dentist, where he/she will probably add a contour in place, but if you mean 'sharpened' like a pencil sharpened, then talk to your dentist about that.
to sharpen, sharpened, sharpened. sharp = an adjective.
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'.