prejudicial prejudicial /ˌprɛdʒəˈdɪʃəl/

adjective

1. () (sometimes followed by 'to') causing harm or injury  ( detrimental , prejudicious , damaging , prejudicial )
   (sometimes followed by 'to') causing harm or injury
    Damaging to career and reputation
   damaging to career and reputation
    The reporter's coverage resulted in prejudicial publicity for the defendant
   the reporter's coverage resulted in prejudicial publicity for the defendant
   
2. Tending to favor preconceived ideas  ( prejudicial , prejudicious )
   tending to favor preconceived ideas
    The presence of discriminatory or prejudicial attitudes in the white population
   the presence of discriminatory or prejudicial attitudes in the white population