"biased". The word you want is "non-biased".

I literally* don't understand how people mess this up. If you were talking about a list of projects that had not yet been submitted to one of those lists, would you say they are "non-submit"? No, obviously you would say "non-submitted". If you were talking about books that had been printed by a publisher, would you say they are "publish"? No, you would say "published", because it's a past participle, and that is how we say past participles in English. This is not a prescriptive/descriptive thing: every English speaker over the age of 5 talks this way. But for some reason "bias", a completely normal verb, causes people to throw out everything they know about English.

So, stop it.

/rant

* Yes, literally.