Prejudgment (noun)

1. A judgment or opinion formed before having all the relevant facts.
2. A bias in favor of or against one thing, person, or group, especially when this prevents impartial consideration of an issue or event.

Origin:

Late middle english preiudgement, from old french preiugement, from preiuger to judge beforehand, from pre- + juger to judge.

Examples:

1. His prejudgment of the situation led to an incorrect conclusion.
2. Her prejudgment of the candidate clouded her judgment of their qualifications.
3. The prejudgment of the court was a major concern for the defense.
4. Their prejudgment of the book was based on its cover.
5. The prejudgment of the accused was unacceptable in a fair trial.