The Chinese word **低俗** is a compound formed by combining two distinct characters: **低** (dī), meaning "low" or "base" in a qualitative sense, and **俗** (sú), meaning "vulgar," "common," or "unrefined." Together, they create a synergistic meaning that is more specific than either character alone, where **低** intensifies the negative, degrading aspect of **俗**, resulting in a term that comprehensively denotes something as "crudely vulgar," "tastelessly coarse," or morally and aesthetically "lowbrow." This formation follows a common pattern in Chinese lexicon where two semantically related morphemes are combined to express a precise, nuanced concept—in this case, a strong pejorative for cultural products or behavior deemed to be of debased and offensive quality.