appearance, visual aspect - outward or visible aspect of a person or thing

unsightliness - ugliness that is unpleasant to look at

grotesqueness, grotesquerie, grotesquery - ludicrous or incongruous unnaturalness or distortion

garishness, gaudiness - strident color or excessive ornamentation

unpleasingness - the quality of being unpleasant

hideousness - extreme ugliness

unattractiveness - ugliness that is not appealing

eyesore - something very ugly and offensive