unattractive

/ˌʌnəˈtræktɪv/
adjective
  1. Not pleasing to look at; not appealing or desirable.
    • She worried that her messy hair made her look unattractive for the job interview.
    • The old building was unattractive, with peeling paint and broken windows.
    • The offer was unattractive because it paid too little for too much work.