When we encounter someone who is unpleasant and difficult to deal with, the term "obnoxious person" may come to mind. However, sometimes we might want to describe someone in a more unique or nuanced way. Some synonyms for "obnoxious person" include: irritating, offensive, rude, annoying, insufferable, unpleasant, overbearing, crude, aggressive, and unbearable. Each of these words conveys a slightly different shade of meaning, but all can help to accurately capture the essence of someone who we find frustrating or unpleasant. By using a synonym for "obnoxious person," we may be able to more effectively communicate our feelings about that person.