Over zealous refers to someone who gets too excited or enthusiastic about something and often goes overboard in their actions. There are several synonyms for this term, including fanatical, obsessive, fervent, passionate, extreme, intense, enthusiastic, and hyperactive. These words describe someone who is overly eager and enthusiastic about something, which can sometimes be perceived as annoying or too pushy. While their passion for something is admirable, it's important to maintain a balance and be mindful of how their actions may impact others. It's essential to stay grounded and avoid crossing the line from enthusiasm into obsession.