IPA: //ˈprɛdʒ.ʊ.dɪs//
KK: /ˈprɛdʒədɪs/
A negative opinion or belief about someone or something that is formed without knowing all the facts or based on stereotypes.
Her prejudice against people from different cultures made it hard for her to make friends.
To cause someone to have an unfair opinion about a person or group without knowing them well.
His comments were meant to prejudice the jury against the defendant.
Past: prejudiced
Past Participle: prejudiced
Prejudice is formed from "pre-" (meaning before) and "judicium" (meaning judgment). The word refers to forming a judgment or opinion before having all the facts or evidence.
Think of making a 'judgment' ('judicium') 'before' ('pre-') knowing the whole story — that's why prejudice means forming an opinion too early.