ADJ-GRADED
（通常因涉及暴力、挑衅行为而）令人厌恶的，邪恶的，恶性的
If you refer to an event or situation as ugly, you mean that it is very unpleasant, usually because it involves violent or aggressive behaviour.
例句
There have been some ugly scenes...
出现了一些恶性事件。
The confrontation turned ugly.
对抗局面进一步激化。