An "adjunct" is something added on as extra or an assistant. It is most similar in meaning to "accessory," which is the correct answer. For clarification, a "portal" is a door or means of travel; "cagey" means cautious and wary; "whimsical" means silly and quirky; "cantankerous" means ill-tempered and grumpy.

A "facet" is an aspect of something. For clarification, "mythical" means legendary or fabulous; "genuine" means real and authentic; "vie" means compete or battle for.

"Clarity" is a noun that describes clearness of expression or thought, and it is therefore most similar in meaning to lucidity. "Lucidity" means clearly understood or rationally thought out. For clarification, "incoherent" means nonsensical and hard to understand; "gloomy" means dark and depressing; "miserly" and parsimonious are synonyms that both describe someone who is not generous.

"Feature" means attribute or characteristic. "Quantity" means the total number of things in a group. "Presentation" means the way in which something is showed or displayed. "Violence" means a physically hurtful act. "Independence" means self-government.

"Audition" means interview. "Practice" means to learn to do something better by doing it repeatedly. "Transformation" means a significant change. "Discovery" is something that has been found. "Resignation" means the act of giving up or quitting one's job.

"Livelihood" means job or income. "Speech" is the act of speaking or a formal talk or presentation. "Trickery" means deception. "Bewilderment" means confusion or chaos. "Respect" means high regard or esteem.

"Tolerance" means the act of tolerating someone or acceptance. "Prejudice" is a prejudgment. "Unfair" means lacking fairness or justice. "Stamina" means endurance. "Convoy" is a group of vehicles traveling together.

"Noble" means honorable. "Disrespectful" means rude or impolite. "Arrogant" means haughty or full of oneself. "Miraculous" means occurring through some divine, supernatural, or magical interference. "Showy" means excessive in appearance or ostentatious.

"Chore" means routine task done to keep one's home clean, so "task" is the correct answer. "Astronomer" is a person who studies astronomy. "Affection" is a noun that means love or care. "Strategy" is a noun that means a plan or a policy. "Hardship" is a noun that means struggle or difficulty.

"Founder," when used as a noun, means someone who begins something. However, "founder" can also be used as a verb that means break down or, when referring to a ship, sink. So, the correct answer is “sink.” For clarification, "ascend" means rise or climb up, "jaunt" means an outing; "egress" means an exit or a way out, and "fey" means irrational or supernatural.