The most appropriate antonym for "hospitality" is "coldness." Hospitality refers to the warm and friendly reception and treatment of guests, so "coldness," which implies a lack of warmth or friendliness, serves as the opposite. The other options— "complaint" (a statement expressing dissatisfaction or annoyance), "cordiality" (warmth and friendliness), and "wrathful" (full of or characterized by intense anger)— do not convey the opposite meaning of "hospitality" in this context.

"Shallow" refers to something having little depth, while "deep" represents the opposite, indicating a significant depth.