How is something described if it is considered offensive by accepted standards?

When something is described as offensive by accepted standards, it is categorized as obscene. The term "obscene" is commonly used in legal and everyday contexts to refer to material or behavior that violates community norms of decency, typically due to being indecent, offensive, or morally repugnant. This aligns with how society evaluates content based on its appropriateness, particularly regarding sexual, violent, or vulgar elements that are not deemed acceptable.

In contrast, the other options refer to concepts that are positive or acceptable. "Acceptable" implies compliance with societal norms or standards, suggesting that the material or behavior in question does not cause offense. "Respectable" encompasses qualities that are regarded with esteem or honor, while "admirable" refers to something worthy of respect and approval. None of these terms convey the idea of being offensive; rather, they indicate approval and acceptance within social frameworks. Thus, the choice of "obscene" is appropriate in this context, as it specifically denotes standards that have been breached or deemed unacceptable.