The Chinese word **深切** is a compound adjective formed by combining two independent, meaningful characters: **深** (*shēn*), meaning "deep," and **切** (*qiè*), which conveys "close," "keen," or "earnest." Together, they create a single, nuanced concept through a coordinative or complementary relationship, where both elements intensify each other to describe something profound, heartfelt, and sincere. This formation is typical of classical Chinese lexical patterns, where two near-synonymous or thematically related morphemes merge to express an abstract quality—in this case, a depth of feeling (as in **深切的关怀**, "deep concern") or a penetrating, thorough understanding (as in **深切地体会**, "to keenly appreciate").