The word "bemoaner" refers to someone who complains frequently or expresses their dissatisfaction in a negative way. However, there are many synonyms that can be used to describe this type of person. For example, they could be called whiners, moaners, grumblers, complainers, gripers, grumblers, or naysayers. Other words that come to mind include faultfinders, pessimists, sourpusses, and nitpickers. No matter what you call them, these types of people tend to focus on the negative rather than the positive, and their constant complaining can be draining for those around them. It's important to recognize when you're engaging in this type of behavior and try to shift your mindset to one of gratitude and positivity instead.