adjective. not sympathetic

adjective. not having an open mind

adjective. not agreeing with your tastes or expectations

adjective. (of characters in literature or drama) tending to evoke antipathetic feelings

adjective. not sympathetic or disposed toward

adjective. lacking in sympathy and kindness

"I know myself that some authors on some days will persuade me to be interested in unsympathetic characters, and then other authors on other days will not."

incompatible  uncongenial  unkind  unreceptive  unsympathising  

Athletic  Peripatetic  acetic  aesthetic  alphabetic  

aloof  callous  disapprove  disinterested  expressionless  

affectless  anesthetized  arctic  autistic  blunt