When it comes to describing someone or something as making unwelcome, there are many synonyms to use. Some of these include upsetting, bothering, disturbing, harassing, pestering, irritating, troubling, aggravating, annoying, and vexing. All of these words suggest a negative or unwanted impact on a person or situation. It may be someone's behavior, actions, or words that create an unwelcome environment. When you want to express how someone or something is creating a situation that is unwelcome, you can use these synonyms to make your point. Whether it's a person in your life or a specific situation, it's important to be able to describe the impact it has on you and be able to communicate it effectively.