GRE Vocabulary Builder

Answer: Choice (C) is correct.

In the first half of the analogy, inveterate means enduring or entrenched, and intermittent means sporadic or irregular. So, look for the answer choice that contains antonyms. Choice (A) contains synonyms. Contiguous means neighboring or adjoining, so eliminate that choice. In choice (B), deferential means respectful or reverent, so eliminate that choice. In choice (D), potent and heady are similar; potent means strong, and heady means intoxicating or exhilarating. However, they do not have the same relationship as the first half of the analogy. In choice (C), capricious means impulsive and changeable, not predictable. Therefore, choice (C) is correct.