What is another word for niggling?
Pronunciation: [nˈɪɡlɪŋ] (IPA) 
The word "niggling" refers to something that is small or insignificant but still causes annoyance or irritation. There are several synonyms for this term, including petty, trifling, inconsequential, minor, negligible, and insignificant. These words all convey a sense of something that is not of great importance but still manages to be bothersome. Other synonyms for niggling include trivial, paltry, small-minded, and picayune. Regardless of the specific term used, all of these words describe something that is minor but still manages to be irritating or frustrating. Whether it's a small annoyance or a larger source of stress, the end result is the same: something niggling can be a major hassle.
