"Succinct" means expressed clearly and concisely, so "concise" is the best answer choice.

"Prolix" means using too many words, or verbose.

“Monolithic” is an adjective that can mean extremely large, so we need to pick out an answer choice that means something like large. That means that “diminutive” cannot be the correct answer, because “diminutive” means very small when used as an adjective, making the word an antonym, not a synonym, of “monolithic.” “Colossal,” however, is an adjective that means very big, and because “colossal” is the answer choice closest in meaning to “monolithic,” “colossal” is the correct answer.

"Pithy" means brief and full of meaning.

"Analogous" means that two things are similar in nature. "Comparable," the correct answer, also means able to be compared and similar in some respect. The other answers do not have similar definitions: "foreign" means from a different country; "computerized" means done by a computer; "filthy" means dirty; and "tardy" means late.

"Virtual" means not existing physically, but rather simulated by a computer. "Simulated" is therefore the correct answer. "Electronic," which meanas powered by electricity, may seem like a potentially correct answer, but it is not as close in meaning to "virtual" as "simulated" is. None of the other answer choices are close in meaning to "virtual": "chaste" means innocent or pure, "ramshackle" means run-down or ready to collapse, and "contemporary" means current or happening in recent times.

"Casual" means relaxed or not formal, so "informal," an adjective that also means not formal, is the correct answer. "Formal" is an antonym of "casual"; it means adhering to a strict set of rules or conventions. None of the other answer choices have meanings related to that of "casual": "timid" means afraid or easily frightened; "fruitful" means productive; "collaborative" means cooperative or involving multiple people working together to achieve a goal.

“Germane” means relevant, so "relevant" is the correct answer. None of the other answers are close in meaning to “germane”. “Touchy” means easily upset. “Discerning” means perceptive. “Jealous” means envious. “Crusty” means having a crisp or hard outer layer or covering.

"Germane" is an adjective that means relevant to the topic of discussion, so we need to pick out an answer choice that means something like relevant. While both "important" and "pertinent" may look like potentially correct answer choices, "important" does not mean relevant, while "pertinent" means relevant. Because "pertinent" is the closest synonym of "germane" amongst the listed answer choices, it is the correct answer.

"Profane" means secular, disrespectful, or "indecent."