“Fatal” means deadly or lethal. To provide further help, “unruly” means not obedient, naughty; “dominant” means in charge, in control; “feeble” means weak and pathetic; “robust” means strong and sturdy. Someone who is “feeble” is opposite to someone who is “robust,” so the two words are antonyms.

"Genuine" means real or authentic, so "authentic" is the correct answer. None of the other answer choices are close in meaning to "genuine": "generous" means willing to give time or money to another person or cause; "thrifty" means frugal or spending carefully; "contagious" means capable of being spread easily and is used to describe diseases; and "stalwart" means reliable and loyal.

"Frauduent" means fake or deceptive, which is closest to "counterfeit."

A “fraud” is a phony, so it stands to reason that something or someone who is “fraudulent” is fake. To provide further help, “garrulous” means talkative; “genuine” means real, authentic and is an antonym of “fraudulent”; “reserved,” when used to describe a person, means shy; “wanton” means random and senseless. 

"Tentative" means unsure or uncertain. For example, one might write, "Gina had tentative plans to visit her mother that evening, as she was still waiting to hear whether her mother wanted to spend time with her." So, "uncertain" is the correct answer.

The word "demonstrative" refers to something that is meant to explain some information. The best choice is "explanatory" because it shares the same definition as "demonstrative." Considering the other choices, "achievable" means able to be attained, "lacking" means not having, and "showy" means making a great display. 

"Didactic" means serving to instruct or teach, so "instructive," which means serving to instruct, is therefore closest in meaning. 

Something that is didactic may be "interesting," but this is possibly a characteristic of something that is didactic, rather than a definition. Therefore, "interesting" cannot be the correct answer. As for the other answer choices, "dynamic" means active or  changing and "candid" means honest.

The word "demonstrative" means serving the purpose of showing and explaining. The best choice is "show" as it is a part of the definition of "demonstrative."

The word "inane" means having no sense. So, "absurd," which means completely senseless, is the best choice. Considering the other choices, "eminent" means distinguished in rank, "smooth" means even on the surface, and "wordy" means talkative.

“Acute” can be used to describe a person in which case it refers to someone who is sharp-minded or quick-witted, or it can be used to describe an angle in a triangle, in which case it means measuring less than ninety degrees. When an angle is exactly ninety degrees we call it a “right” angle; when it is greater than ninety degrees we call it an “obtuse” angle. Just like how either a person or an angle can be “acute,” so too can a person or an angle be “obtuse." When a person is “obtuse,” we say they are dull-minded or slow-witted, or in other words, not easily understanding things that most other people understand. To provide further help, “transparent” means able to been seen through, “translucent” means partially able to be seen through, and “opaque” means unable to be seen through. The three words are used to describe how light passes through objects. A window is “transparent,” the ocean is “translucent,” and a brick wall is “opaque.”