feeling or showing anger
"angry at the weather"
"angry customers"
"an angry silence"
"sending angry letters to the papers"
(of the elements) as if showing violent anger
"angry clouds on the horizon"
"furious winds"
"the raging sea"
Displaying or feeling anger.
"The crowd turned angry when the referee made a controversial call."
In plain English: Angry means feeling very upset and wanting to lash out because something made you mad.
"She was angry when her friend forgot their birthday again."
The word angry comes from Middle English and is directly related to the noun anger. Its original meaning was simply being filled with or showing anger.