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"prejudice" is also used as a crossword clue. If that's what you saw, the answer is often bias (4 letters).
Definitions
influence (somebody's) opinion in advance
Word origin
From Middle English prejudice, from Old French prejudice, derived from Latin praeiūdicium (“previous judgment or damage”), from prae- (“before”) + iūdicium (“judgment”).
Used in a sentence
“Though often misled by prejudice and passion, he was emphatically an honest man.”
“Morality is but a prejudice.”
“I am free of all prejudices. I hate everyone equally.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Unfair bias”9 letters
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