“Strident” is an adjective that is often used to mean harsh and loud. So, we need to pick out an answer choice that means something like loud. That means that “faint” cannot be the correct answer, because “faint” is an adjective that means indistinct or almost imperceptible, making it an antonym, not a synonym, of “strident.” “Audible” cannot be the correct answer either, because while a strident noise is audible (perceptible as sounds via listening), “audible” does not mean the same thing as “strident.” “Piercing,” however, is an adjective that can mean shrill and loud, and because “piercing” is the answer choice closest in meaning to “strident,” “piercing” is the correct answer.

"Lithe" means graceful and limber, like a ballerina, so "graceful" is the correct answer.

“Discrete” is an adjective that means separate, so we need to pick out an answer choice that means something like distinct. That means that “combined” cannot be the correct answer, because “combined” is an adjective that means merged, making it an antonym, not a synonym, of “discrete.” “Individual,” however, when used as an adjective, means separate, and because “individual” is the answer choice closest in meaning to “discrete,” “individual” is the correct answer.

"Rancid" most nearly means rotten, as in "The food that had been left out on the counter top was rancid when the Smiths returned from their two-week vacation."

“Frangible” is an adjective that means “fragile; brittle,” so we need to pick out an answer choice that means something like “fragile.” That means that “shatterproof” cannot be the correct answer, because “shatterproof” means “made so that it does not break easily and will not form sharp, dangerous pieces if it does break,” making it an antonym, not a synonym, of “frangible.” “Breakable,” however, is an adjective that means “capable of breaking or being broken easily,” and because “breakable” is the answer choice closest in meaning to “frangible,” “breakable” is the correct answer.

"Comely" is an adjective that means very cute or attractive, so "cute" is the correct answer. For clarification, "ugly" means aesthetically unpleasant, "imperfect" means having flaws or not perfect, "perfect" means having no flaws or errors, and "boisterous" means loud or unruly.

"Salient" is an adjective that means "most noticeable or important," so we need to pick out a word that means something like "most noticeable." While "constituent" and "conspicuous" might sound quite similar, "constituent" means "being a part of the whole," while "conspicuous" means "standing out so as to be clearly visible" or "attracting notice or attention." Since "conspicuous" is the answer choice closest in meaning to "salient," "conspicuous" is the correct answer.

Someone who is "burly" is stocky and well-built, so "stocky," a word that means strapping, heavyset, or brawny, is the correct answer. For clarification, "lanky" describes someone who is tall and skinny, portly means stout or fat, and comely means cute or attractive.

"Intact" means complete. "Broken" is an antonym of "intact" and means smashed or shattered. "Spoiled" means coddled. "Social" can mean having to do with society. "Accurate" means correct or precise.

"Vacuous" means empty. It also means lacking ideas or intelligence.