To be "jubilant" is to be joyful, exuberant, and celebratory. This is the opposite of being "mournful" or "sorrowful." "Suspicious" means doubtful or untrustworthy. "Luxurious" means comfortable, elegant, or expensive.

Something "heavy" is weighty or dense, the opposite of light. Something "clumsy" is awkward or physically uncoordinated. "Gaudy" means extravagant or showy, usually in a tasteless way. This is the opposite of "tastefully," which means with good taste.

To be "irritable" is to be cranky, grumpy, or easily annoyed. "Pleasurable" is a near antonyms of "painful," and "vicious" means cruel. "Effortless" means easy, done with little or no effort. "Vengeful" means wanting or seeking vengeance, revenge.

The adverb "seldom" means occurring irregularly, occurring on rare occasions, rarely. Additionally, "frequently" means occurring often; "occasionally" means occurring every now and then, sometimes happening.

Captivate means to charm.

Laud means to praise.

"Endorse" is a verb that means "to publicly or officially say that you support or approve of someone or something," so we need to pick out another word that means something like "support." While "oppose" and "espouse" may look and sound somewhat alike, "oppose" means "to disagree with or disapprove of something or someone," so it is an antonym of "endorse" and not the correct answer. "Espouse," on the other hand, is a verb that can mean either "to marry" or "to express support for a cause or belief." Because "espouse" is the answer choice closest in meaning to "endorse," it is the correct answer.

"Allude" is a verb that means "to make an indirect reference to," so we need to pick an answer that means "reference indirectly." "Cite from" and "Refer to directly" may both seem like correct answers, but they involve direct references, whereas "allude" specifically involves indirect references. The only answer choice that specifically involves indirect references is "refer to indirectly," so "refer to indirectly" is the correct answer.

Since "dispute" means "disagreement, argument, or verbal controversy," we need to pick out another answer choice that also means "disagreement." While "competition" and "debate" might both look like potentially correct answers, "competition" means "the act or process of trying to win something that someone else is trying to win," whereas "debate" means "a discussion between people in which they express different opinions about something." Since both "dispute" and "debate" mean "disagreement," "debate" is the correct answer.

"Imply" is a verb meaning "strongly suggest the truth or existence of something not expressly stated," or "suggest something as a logical consequence" when used to refer to facts or occurences. So, we need to pick out an answer choice that means something like "strongly suggest something unstated." While "suggested" may look like the correct answer, "suggested" is not an infinitive verb, but an adjective or a verb conjugated for the past tense, so "suggested" cannot be the correct answer. "Intimate," however, can be used as a verb meaning "imply or hint," or "state or make known." Because "intimate" is the answer choice closest in meaning to "imply," "intimate" is the correct answer.