The phrase "is pissed off" is a commonly used way to express irritation or anger. However, there are many other synonyms for this phrase that can be used to better convey one's emotions. Some alternatives include "is furious," "is boiling with rage," "is incensed," "is seething," "is livid," "is irate," and "is infuriated." These phrases offer a more nuanced and descriptive way to express one's displeasure, and can be useful in a variety of situations. Whether you're talking to friends or colleagues, using alternative phrases for "is pissed off" can help you communicate your emotions more effectively.