If a business is “lucrative,” it makes a lot of money or it is able to make a lot of money. “Profitable” also means able to make a lot of money or profit. If something is “hindering,” it prevents something from moving forward. You can tell the meaning of the word "hindering" from its root word "hind-," which means back. An animal’s “hind” legs are their back legs. “Recreational” refers to something done in one's spare time. “Sensational” means shocking or amazing.

"Formidable" is an adjective that means "inspiring fear or respect through being impressively large, powerful, intense, or capable." So, we need to pick out an answer choice that means something like "inspiring fear or respect." "Afraid" may look like a potentially correct answer, but "afraid" does not mean "inspiring fear," but rather "feeling fear or anxiety; frightened," so it cannot be the correct answer. "Accomplished," however, is an adjective that means "highly trained or skilled," and because "accomplished" is the answer choice that is closest in meaning to "formidable," "accomplished" is the correct answer.

"Potent" is an adjective that means "having great power, influence, or effect," so we need to pick out an adjective that means something like "powerful" or "having a strong effect." "Frail," then, cannot be the correct answer, because "frail" is an adjective that can mean "of a person: weak and delicate," "easily damaged or broken; fragile or insubstantial," or "weak in character or morals," making it an antonym, not a synonym, of "potent." "Mighty," however, is an adjective that can mean "possessing great and impressive power or strength, especially on account of size" or "of an action: performed with or requiring great strength." Because "mighty" is the answer choice closest in meaning to "potent," "mighty" is the correct answer.

"Potent" means powerful; Unfortunate means unlucky; Immortal means able to live forever; Memorable means easily remembered; and Critical means important.

"Drowsy" means sleepy or tired.

Something that is "intricate" is complex and complicated. For clarification, an "outlier" is something or somebody that is outside of the norm; "serendipitous" means owed to good fortune.

"Potent" means forceful or powerful, so "powerful" is the correct answer. "Weak" is an antonym of "potent" and "powerful"; it means not having strengh or power. "Disappointed" means upset or not having one's expectations met. "Idiotic" means stupid or foolish. "Flawless" means perfect or without defects.

"Torpid" means inactive or lacking energy. While not precisely synonyms, "functional" and "active" have similar meanings. You can eliminate them. "Dynamic" and "vital" are synonyms meaning full of energy. Therefore, the only choice that fits is "dormant," which means inactive.

"Feeble" is an adjective that means lacking strength. Of the answer choices, "weak" has the closest meaning.

"Grueling" means very tiring or exhausting, so "exhausting" is the correct answer. "Lively" is an antonym of "grueling" and "exhausting"; it means active or having a lot of energy. "Immature" means child-like, as one might infer from the word being a combination of the negative prefix "im-," which means not, and "mature." "Contagious" means easily spread and usually refers to a disease. "Diligent" means hard-working.