preconception
prepossession
parti pris
preconceived opinion
preconceived idea
preconceived notion

Due to the high-profile cancellation of An-10 operations, there is a preconceived opinion about a high accident rate for the type.

Or is he one of those men of science who feel personally injured when facts run counter to their preconceived opinions?

Not many of us come to these questions so free of preconceived opinions and prejudices.

I came into the article with the preconceived opinion that the labels are wrong and should burn.

For after all, a witch's opinions should have some value, even though they may not fit in with preconceived opinions.

They form a preconceived opinion, then they look at the work of art.

In that regard, a portrait was expected to defer to preconceived opinion.

We should not be confirming the preconceived opinion that many hold of all these institutions being peas from the same pod.

Elicas had no preconceived opinion, but instinctively liked the blond archer.

Hence, we must discard all preconceived opinions which conflict with facts.