Prejudicial (adjective)

1. Having the effect of prejudging or influencing in a negative way.
2. Based on preconceived opinions or biases rather than facts or evidence.

Origin:

From the latin word "praejudicium" meaning "prejudice" or "preconceived opinion".

Examples:

1. The prejudicial attitudes of the jury members caused them to acquit the defendant despite overwhelming evidence of guilt.
2. The judge ruled that the testimony was prejudicial and inadmissible in court.
3. His prejudicial beliefs about immigrants made him an easy target for hate speech.
4. The company's prejudicial hiring practices resulted in a lack of diversity in the workplace.
5. The prejudicial treatment of women in the workplace is unacceptable and must be addressed.