0 unpleasant to look at; not attractive: --
1 unpleasant and threatening or violent: --
2 extremely unattractive in appearance: --
He’s a really ugly dog.
3 unpleasant and threatening or violent: --
This policy could have some ugly consequences.
He's an ugly bruiser - I wouldn't like to meet him down a dark alley!
A screen of trees at the bottom of the garden hid the ugly factory walls.
Most of the furniture is so ugly, you wouldn't give it house-room.
Concern about the ugly effects of industrialization has led to the greening of many of our cities.
This part of the old town has been disfigured by ugly new buildings.