unlikeable

Adjective

• difficult or impossible to like
  • a disagreeable and unlikable old woman
    

• (of characters in literature or drama) tending to evoke antipathetic feelings
  • all the characters were peculiarly unsympathetic
    

Related words

• Synonyms: 
  unlikable , unsympathetic , unappealing
• Antonyms: 
  sympathetic , appealing , likeable , likable