A lot of writing about emotions, especially strong ones, is dancing around it. When you write about a strong emotion, it's actually the body language and physical effect you want to focus on.
For example: Anger surged through him. vs His whole body began to tremble, his teeth slotted together and his jaw ached as his knuckles turned white, his fingers curling into a fist and digging crescent moon shapes into his palm.
Not only is it a nice boost to your word count, it's also more effective at getting the message across than "He was angry." -_-