You searched for: “prepossession
prepossession (s) (noun), prepossessions (pl)
1. The condition of being preoccupied with feelings, thoughts, opinions, or objects: Doug's immersion and prepossession in learning about reptiles quite impressed his parents!
2. An opinion formed beforehand without adequate evidence: Mrs. Smart was absorbed with the prepossession that she wasn't going to like her new job even before she met her colleagues and boss, who were actually very nice people!