prejudicial adj: having the effect of prejudice: as
a : tending to injure or impair rights [such a transfer would be to other creditors]
b : leading to a decision or judgment on an improper basis [the evidence was excluded because it was more than probative]
Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.