Here's why you should avoid using "thirstily" in your writing. First, it's not technically a word. Second, it's often misused, and can imply things like extreme greed or an animalistic desire. Third, it doesn't always make sense in context. For example, you might want to describe someone as "thirstily reading a book" or "thirstily eating dinner," but not "thirstily drinking water." Finally, using the proper word can convey a more nuanced message that's more in line with your audience. For example, you might say that someone is "thirsty for knowledge" or "thirsty for new experiences.