Synonyms: Adjectives Describing Authenticity, Truth, Existence, and Understanding - ISEE Lower Level Verbal Reasoning

Immaterial suggests that something is deemed unimportant or it lacks significance. In this question, it calls upon the first definition of immaterial; the other definition of immaterial defines something as spiritual rather than physical.

For something to be "fanciful," it means that it is whimsical and imaginary; it is opposite of something that is real and reasonable.

"Ephemeral" is an adjective that means "lasting for a very short time." So, we need to pick out an answer choice that means something like "lasting for a short time." "Permanent" cannot be the correct answer, then, because "permanent" is an antonym of "lasting for a short time." "Transitory," however, is an adjective that means "not permanent," or in other words, "of brief duration : temporary," and because it is the answer choice that is closest in meaning to "ephemeral," "transitory" is the correct answer.

"Ludicrous" is an adjective that means "so foolish, unreasonable, or out of place as to be amusing; ridiculous." So, we need to pick out an answer choice that means something like "ridiculous." "Sensible" cannot be the correct answer, then, because "sensible" is an antonym of "ridiculous." "Preposterous," however, is an adjective that means "contrary to reason or common sense; utterly absurd or ridiculous," and because it is the answer choice that is closest in meaning to "ludicrous," "preposterous" is the correct answer.

The word "evident" is an adjective that means clear or obvious. For example, if a certain fact is evident, it is so clear-cut that most people likely know it to be true. "Obvious" is our answer here. "Obscured" means hidden, and "confusing" is the opposite of "obvious," so we can eliminate those choices right away. "Healthy" refers to a behavior or lifestyle that is good for your body or mind, so that choice is irrelevant here.

"Persuasive" is an adjective that means good at convincing others to adopt your viewpoint. So, the answer choice closest in meaning to "persuasive" is "convincing," an adjective that means capable of causing someone to believe that something is true or real. None of the other answers are close in meaning to "persuasive": "weak" means lacking power; "false" means not true; and "extraordinary" means very unusual or remarkable.

The word "enlightening" comes from the word light, but it is used in a metaphorical sense. It means making something understandable. Think of when we say, "That was an enlightening explanation."It is like the explanation "shines" and makes its topic obvious. The best option for this is "informative," for informative things or actions help to explain something else.

"Preposterous" means not making sense, ridiculous, or absurd, so "absurd" is the correct answer. To help you, "whimsical" means quirky and silly, "intelligent" means smart, "mediocre" means average when a higher quality is expected, and "available" means able to be used or gotten.

Obscure can be used as a verb or an adjective. As an adjective, it means hard to understand; as a verb, it means to hide. To further help you, reveal means to make known; display means to show; depict means to represent.

"Incoherent" describes someone or something that is unable to be understood.

When a person behaves rationally, he or she is thinking sensibly about his or her actions. Similarly, "logical" behavior is conducted according to reasonable thought or "logic." In other words, these two terms are synonyms. As for the other choices, "unreasonable" behavior is not sensible, an "irritated" person is bothered or annoyed, someone who is "hurried" is rushed, and something "frangible" is easily broken.

"Credible" means believable or trustworthy. The best choice is "reliable" because it also means trustworthy. Considering the other choices, "doable" means able to be done, "sociable" means friendly, and "daring" means courageous.

The word "dubious" means doubtful or untrustworthy. The best choice is "doubtful" because it is part of the definition of "dubious_._"Considering the other choices, "double" means two of something, "wrong" means not correct, and "hasty" means quick.

The word "tentative" means uncertain. The best choice is "unsettled," which also means uncertain. Considering the other choices, to "chide" means to express disapproval, "caustic" means judgemental, and "timely" means well-timed.

The word "implicit" means understood without being said. The best choice is "unspoken" because "without being said" is part of the definition of "implicit."

"Transient" is defined as lasting only for a short amount of time, making "temporary" the best answer choice. "Permanent," "long-term," and "lengthy" are all antonyms of transient.

"Omniscient" means having complete and unlimited knowledge. "All-knowing" means knowing everything, so it is the best match.

"Quizzical" means demonstrating that you do not understand something and have a question and usually refers to expressions. "Inquire," the verb form of "inquiring," means ask, so "inquiring" is the best match because it means demonstrating that you have a question about something.

"Improbable" is an adjective that means either "not likely to be true or to happen" or "unexpected and apparently inauthentic." So, we need to pick out an answer choice that means something like "not likely." "Expected" cannot be the correct answer, then, because "expected" means "regarded as likely to happen," making it an antonym, not a synonym, or "improbable." "Unlikely," however, is an adjective that means "not likely to happen, be done, or be true; improbable," and because "unlikely" is the answer choice closest in meaning to "improbable," "unlikely" is the correct answer.