I wouldnt say it has zero chance of being brute forced, but it would defintely reduce the chances of it being guessed, well it was before you posted this thread lol
Yep, special characters should do the trick. Most brute forcers wont bother with them as the increase in time it would take to do all alphanumeric characters and special chars. Although some password entries do not allow them so you might be stuck.
Anyway, adding numbers aswell as standard characters should reduce the chance of your password being brute forced.