Definition of ugly adjective from the Oxford Advanced American Dictionary

      

    ugly

     adjective
    adjective
    NAmE//ˈʌɡli//
     
    (uglier, ugliest)
     
    jump to other results
  1. 1unpleasant to look at synonym unattractive an ugly face an ugly building an ugly scar
  2. 2(of an event, a situation, etc.) unpleasant or dangerous; involving threats or violence an ugly incident There were ugly scenes in the streets last night as rioting continued.
  3. Idioms
    (as) guilty, miserable, ugly, etc. as sin(informal)
     
    jump to other results
    used to emphasize that someone is very guilty, etc.
    something rears its (ugly) head
     
    jump to other results
    if something unpleasant rears its head or rears its ugly head, it appears or happens
 
noun [uncountable] He was depressed by the extreme ugliness of the city.
See the Oxford Advanced Learner's Dictionary entry: ugly