What is the meaning of the word mordant?

The word "mordant" is used to describe a tone or manner that is sharply critical or cutting, often in a way that can be perceived as humorous but also biting or sarcastic. This aligns perfectly with the meaning of being disrespectful, as a mordant comment might aim to ridicule or belittle someone or something.

In contrast, the other choices do not capture the essence of the word. Elegant refers to something that is graceful and stylish, which is unrelated to the critical nature of "mordant." Soothing suggests a calming or comforting quality, again not reflective of the sharpness implied by "mordant." Joking, while it may suggest humor, does not encompass the often biting nature of mordant humor, which can convey a sense of disrespect or sarcasm rather than light-heartedness. Thus, the selection of disrespectful is the most fitting interpretation of the word "mordant."