D defs.my
Entry 2 senses Webster, 1913

Prejudicial

/prĕjˌ-əd-ĭsh'-əl/ · Prej·u·di·cial · IPA /ˌprɛdʒʊˈdɪʃl/
01 a. Biased, possessed, or blinded by prejudices; as, to look with a prejudicial eye.
  1. 1.
    Biased, possessed, or blinded by prejudices; as, to look with a prejudicial eye.[Obs.]
  2. 2.
    Tending to obstruct or impair; hurtful; injurious; disadvantageous; detrimental.
    “His going away . . . was most prejudicial and most ruinous to the king's affairs.” Clarendon.