"Seemly" and "congruous" both mean appropriate or suitable. "Unsuitable" means not proper or inappropriate. "Ebullient" means cheerful or full of energy. "Ephemeral" means passing or transient. "Fractious" means grouchy or cross. 

"Indecorous" and "coarse" both mean improper or rude. "Acerbic" means bitter, sharp, or sour. "Ascetic" means self-denying or austere. "Capricious" means given to sudden behavior changes. "Desiccated" means dry or arid.

"Profane" is a word that when used as an adjective, can mean either "relating or devoted to that which is not sacred or biblical; secular rather than religious" or "not respectful of orthodox religious practice; irreverent" when describing a person or his or her behavior. As a verb, "profane" means "treat something sacred with irreverence or disrespect." However, all of our potential answer choices are adjectives, so we will need to consider "profane" as an adjective. So, "religious" cannot be the correct answer, because "religious" is an antonym of "profane," not a synonym. "Secular," however, is an adjective that means "denoting attitudes, activities, or other things that have no religious or spiritual basis." So, because "secular" is the answer choice closest in meaning to "profane," it is the correct answer.

Because "incongrous" means out of the ordinary or not in harmony or keeping with the surroundings or other aspects of something, the answer choice that is its closest synonym is "anomalous," or deviating from what is standard, normal, or expected.

"Commensurate" is an adjective that means "equal or similar to something in size, amount, or degree; in proportion to," so we need to pick out a word that means "proportionate." While "redundant" may sound like a good answer choice because it also deals with relationships between things, "redundant" actually means "repeating something else and therefore unnecessary," so it is not the word we're looking for. "Correspondent," however, besides meaning "a person who writes letters to a person or a newspaper, especially on a regular basis" as a noun, can also function as an adjective meaning "having a close similarity; matching or agreeing almost exactly." Of the available answer choices, "correspondent" is closest in meaning to "commensurate," so it is the correct answer.

"Anomalous" and "incongruous" both mean deviating from normal or unusual. "Conforming" means agreeing or harmonious. "Garrulous" means talkative. "Floundering" means struggling or stumbling. "Intransigent" means adamant or stubborn. 

"Insipid" and "banal" both mean dull or uninteresting. "Appetizing" means delicious or appealing. "Sedulous" means busy or determined. "Avant-garde" means unconventional or forward-thinking. "Homogenous" means similar or comparable.

"Preternatural" and "anomalous" both mean unusual or abnormal. "Germane" means appropriate or applicable. "Munificent" means giving or generous. "Stupefying" means stunning or amazing. "Voluminous" means ample or vast. 

The “pot-” portion of this word is derived from the Latin for able and also power. It is found in many English words like “impotent,” “potency,” “omnipotence,” and “potential.” Someone might say, “The speech was extremely potent in stirring the emotions of the crowd; soon, everyone was marching according to the instructions of the speaker.” Among the options provided, “forceful” best conveys this sense of “power.”

When something is futile, it accomplishes nothing. For example, one could say, “No matter how long Thomas spent in the gym, it felt futile, for he was always unable to lift his goal amount of weights.” When something is “ineffectual,” it is “unable to have an effect.” The word is thus somewhat like “ineffective.”