1. (noun)prepossession the condition of being prepossessed Synonyms: preconceived notion, preconceived opinion, preconception, preconceived idea, parti pris
2. (noun)preconception, prepossession, parti pris, preconceived opinion, preconceived idea, preconceived notion an opinion formed beforehand without adequate evidence Synonyms: prejudice, prepossession, parti pris, preconception, preconceived notion, bias, preconceived idea, preconceived opinion