0 unpleasant to look at; not attractive -- 丑陋的,难看的
1 unpleasant and threatening or violent -- 讨厌的;危险的;暴力的
This part of the old town has been disfigured by ugly new buildings.
Concern about the ugly effects of industrialization has led to the greening of many of our cities.
Most of the furniture is so ugly, you wouldn't give it house-room.
A screen of trees at the bottom of the garden hid the ugly factory walls.
He's an ugly bruiser - I wouldn't like to meet him down a dark alley!