Using Regex to exclude certain patterns?

Hi! I've been trying for more time than I'd like to admit, to figure out a regex expression to get all words from a string excluding certain words:

I've been using this awesome site to check my work: http://pythex.org

I.e. if i have the string "good great bad gOod gooooood bad goood bad good awesome bad bad gooD bad"

and i want a list of all the elements that are not "bad"

how do i do that?

right now i'm stuck pretty close at using [A-Za-z'][^bad][A-Za-z']*

which returns: good, great, d gOod, gooooood, d goood, d good, awesome, d bad, gooD"

It leaves in the bad's d though, as well as any repetitions of "bad"

Thanks for taking the time to help!