unsightlier

/ʌnˈsaɪtliər/
adjective
  1. Comparative form of unsightly; more unpleasant or ugly to look at.
    • The abandoned building was unsightlier than the overgrown lot next door.
    • After the storm, the damage looked unsightlier than we had imagined.
    • The graffiti made the wall unsightlier than it already was.