Amargo (en. Bitter)
/aˈmaɾɣo/
Slang Meanings
A person who complains a lot or always has a negative attitude.
Don't be so bitter, enjoy life.
No seas tan amargo, disfruta de la vida.
A situation or thing that does not turn out as expected.
That business was a bitter disappointment, I lost all my money.
Ese negocio fue un amargo, perdí todo el dinero.