livid
Extremely, visibly angry.
Livid describes a level of anger so intense that it shows physically. When someone is livid, they're furious beyond the point of staying calm. You might see their face flush red, their jaw clench, or their hands shake. The word captures that moment when anger becomes visible on someone's body.
Parents might become livid when they discover their teenager lied about something serious. A teacher could be livid after catching students cheating on an important exam. A coach might be livid when players ignore safety rules and someone gets hurt.
You'll mostly encounter this word describing anger, though it can also describe the bluish color of a bad bruise. When someone says “my mom was absolutely livid,” they mean she wasn't just annoyed or frustrated. She was seriously, intensely angry in a way everyone could see.