i Register
In some senses, prejudicate is marked as obsolete, archaic. Watch for register when choosing this word.
adj
Prejudiced, biased.
their works will be embraced by most that understand them, and their reasons enforce belief even from prejudicate Readers.
Preconceived (of an opinion, idea etc.); formed before the event.
ignorances and prejudicate opinions
verb
To determine beforehand, especially rashly; to prejudge.
the Florentine will moue vs For speedie ayde: wherein our deerest friend Preiudicates the businesse, and would seeme To haue vs make deniall.