prepossessed

(transitive) Chiefly followed by by or with: to preoccupy (someone) in an emotional or mental way, so as to preclude other things.
(broadly, transitive) To cause (someone) to have a previous inclination against, for, or to something; to bias or prejudice; specifically, to induce in (someone) a favourable opinion beforehand, or at the outset.
(obsolete, transitive) To cause (someone) to think a certain way.
(obsolete, transitive) To occupy or possess (something) beforehand.
(obsolete, reflexive, transitive) Chiefly followed by of or with: to cause (oneself) to obtain possession of something beforehand, or ahead of someone else.