"Qualifiers and intensifiers are words or phrases that are added to another word to modify its meaning, either by limiting it (He was somewhat busy) or by enhancing it (The dog was very cute). Qualifiers can play an important role in your writing, giving your reader clues about how confident you feel about the information you’re presenting. In fact, “hedging” (as it is sometimes called) is an important feature of academic writing, because academic writers need to clearly indicate whether they think claims are certain, likely, unlikely, or just false. But excessive use of qualifiers can make you sound unsure of your facts; it can also make your writing too informal."

https://writingcenter.unc.edu/tips-and-tools/qualifiers/