Hola Tyler, espero que estés bien. There are “neutral” words that any Spanish speaker will understand such as alterado, furioso, iracundo o encolerizado. Of course, depending on the Spanish dialect there'll be also a variety of words and expressions, some of them with a wider usage than others. For example, in México you can say that someone is enojón from the verb enojar but enfadica from the verb enfadar in Spain (both verbs mean to get angry). I believe both are quite understandable to natives, however, the one you decide to use will reveal your linguistic background. There are also common different expressions: Spain: Tener mala hostia, tener mala virgen, tener mala leche o estar de mala leche. *Jeez! I had forgotten the verb cabrearse. People in Spain use this word a lot. México: Andar enchilado/a as a metaphor for eating spicy food and feeling the heat or Estar que echa fuego with a similar meaning. I hope I’d helped you.

Here in Argentina, we have many words for that! Enojarse: it is the action of being angry. Enojón: someone who gets angry easily. Calentón: Used for men and women, it is someone who is very predisposed to make everything around him angry. Cabrón: Someone who gets angry easily, and usually sees everything negatively. We also have some funny expressions to "imply" that you are "Hot Head" for example. -Él/Ella tiene el piloto encendido.....He / She has the pilot on (the lighter of a heater) that is, at any time it explodes in fire / anger. - Ciudado! que está que brama.... Like saying, do not speak or ask anything, because it is hot / angry / annoying. Cheers! xx

"Fosforito"

..

Aquí en México decimos corajudo Él es bien corajudo Ella es bien corajuda