The correct answer is C. Insipid.
A synonym is a word that has the same or nearly the same meaning as another word. In this case, the word “vapid” means lacking in interest or excitement. The word “insipid” also means lacking in interest or excitement, so it is a synonym of “vapid.”
The word “virtuous” means having or showing high moral standards. The word “priceless” means of great value or worth. The word “vital” means essential to life or existence. None of these words have the same meaning as “vapid,” so they are not synonyms of “vapid.”
Here are some examples of how the word “vapid” can be used in a sentence:
- The party was vapid and boring.
- The speaker gave a vapid and uninspired speech.
- The book was vapid and forgettable.
I hope this helps! Let me know if you have any other questions.