GRE Vocabulary Builder

Answer: Choice (A) is correct.

In the first half of the analogy, indolence and sloth are synonyms for lazy. In choice (B), tempestuous means emotional and stormy, while unperturbed means tranquil and calm.
In choice (C), certain and tentative are antonyms; tentative means hesitant or unsure, not certain. Choice (D) contains antonyms as well. Visceral means intuitive or instinctive, not realistic or based on fact. In choice (A), the words solecism and blunder are both synonyms for error or mistake. Therefore, choice (A) is correct.