preconceived idea
an opinion formed beforehand without adequate evidence - he did not even try to confirm his preconceptions • Syn: preconception, prepossession, parti pris, preconceived opinion, preconceived notion • Derivationally related forms: prepossess (for: prepossession), preconceive (for: preconception) • Hypernyms: opinion, sentiment, persuasion, view, thought
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