There may be many meanings that come to mind when thinking of the word “eternal,” but only the idea of “timelessness” is most appropriate. It literally means “having no beginning or end in time.” This is the only acceptable answer among those provided.

When people become weak as they age, they reach a point at which they are often called “senile.” This often implies not merely physical weakness but more often imply mental weakness and disability. While the options “insane” and “crazed” might tempt you, the best option is the simple “feeble.” The other two options are more than mental feebleness but could indicate a pathology that is unrelated to aging. In the American system of government, “senators” are given that name because they are supposed to be the “old men,” wiser than more youthful representatives.

Since "archaic" is an adjective that means "very old," we're looking for another adjective that has to do with age, and specifically means "old." Of the possible choices, both "inchoate" and "antediluvian" have to do with age, but whereas "inchoate" means "not fully formed or developed; rudimentary," "antediluvian" means "of or belonging to the time before the biblical Flood," or less specifically, "very old." (You can figure out this meaning by looking at the word's component parts: the prefix "ante-" means "before," and "diluvian" suggests something to do with water (think of "dilute," and "deluge," for instance). So, the correct answer is "antediluvian."

"Bucolic" and "pastoral" both mean agrarian or rural. "Metropolitan" means urban or municipal. "Counterfeit" means fake or simulated. "Recondite" means mysterious or obscure. "Mettlesome" means brave or spirited.

Perhaps you have heard of “salsa verde,” or green salsa. The word “verdant” is related to the word for green in Latin as well as Spanish ("verde") and French ("vert"). It means green with plant growth, usually describing the countryside. In some translations of the Bible, one finds the expression, “in verdant pastures,” describing the location of the shepherd’s work. This means in green, lively pastures. Thus, among the options provided, “lush” is the best, as it means growing to a great degree.

The word “indigenous” means “native to a given location” or at least coming from that place. For instance, one can speak of the “indigenous people” living in Australia as opposed to the British settlers who later arrived there. Do not confuse the word “indigenous” with “indigent,” which means “poor” or “needy.”

"Derelict" means deserted, vacant or abandoned. "Sparse" means very few or scattered. "Somber" means sad or depressing. "Gaudy" means flashy or tastelessly showy. "Dauntless" means bold or courageous.

The word “bucolic” pertains to things of the countryside, as the word comes from the Greek and Latin for “herdsman.” The word “pastoral” is often used in religious contexts to describe someone who takes care of religious matters, particularly interpersonal ones. The word took on this meaning through its association with the idea of such a person being a “good shepherd;” therefore, the best match for bucolic would be “pastoral.” Note that while bucolic often is used as an adjective, as in “a bucolic landscape,” it can also be used as a noun meaning a type of poem that pertains to country life.

An example of when to use the word temperate is to describe climate.  A temperate area would be between the tropics and arctic.  Thus, it has a moderate temperature and weather; it is not excessively hot or cold.

"Accustomed" means established, regular, or "habitual." “Habitual” means done often as a habit. As for the other answer choices, “orthodox” means conforming to traditionally accepted truth, usually political or religious; “unorthodox” means unconventional and non-conformist. “Heretical” is similar to “unorthodox,” but is specifically related to religion; it means practicing religion that is against the religious authorities, but can also be used more generally to mean believing or thinking something that is not believed or thought by most people. "Melancholy" means sad in a contemplative way.