by fault i ve added some wrong words to the custom dictionnary
How can i edit this file and where is it ?
i don't have any aspell file in my /home either a hiding file

this file does nt exist in my system:
[dimitris@localhost ~]$ aspell config personal-path
/home/dimitris/.aspell.el_GR.pws
[dimitris@localhost ~]$

Try removing any "Sonnet" named files in $(kde4-config --localprefix)/share/config/

thanks for the reply, i deleted but i cant still find the custom dictionnary

You should be able to use the "Spelling" control module in System Settings > Regional & Language to remove incorrect entries also.

i dont see anything there. i cant choose the default language of the spelling and to ignore or not capital words ..

The controls for the custom dictionaries should be there in that control module. Unfortunately I have been unable to find the location where it stores them on disk.

There are here:

~/.config/enchant/