A vivid verb is a verb that is really descriptive. A vivid verb would be so descriptive that when it is used in a story that the reader can actually visualize it in their mind.
If you use it as one.
look it up on thesaurus.com. it will give you plenty.
"Angry" is an adjective. There are degrees of angry that are more vivid: Rabid, Incensed, Hateful, and Vengeful are some examples.