Having to deal with an annoying problem can be frustrating and time-consuming. However, there are several synonyms for this term that can help to better describe the source of annoyance. One such word is "irritating", which suggests a persistent and persistent issue that is difficult to ignore. Another option is "bothersome", which implies a problem that causes discomfort or inconvenience. Similarly, "troublesome" describes a difficulty that creates a sense of unease or concern. Other related words include "nagging", "vexing", and "pervasive", all of which can help to paint a clearer picture of what is causing frustration and irritation.