Synonyms: Adjectives Describing Authenticity, Understanding, and Importance - SSAT Upper Level Verbal

Trivial and frivolous both mean petty and superficial.

"Irrefutable" is an adjective meaning "impossible to deny or disprove." While "undeniable" and "implausible" may each look like a potentially correct answer because like "irrefutable," "undeniable" and" implausible" each begin with a negative prefix; however, "implausible" means "not seeming reasonable or probable; failing to convince," so it is actually an antonym of "irrefutable," and not the correct answer. "Undeniable," however, means "unable to be denied or disputed." Since "undeniable" is the answer choice closest in meaning to "irrefutable," so "undeniable" is the correct answer.

"Seminal" means innovative, original, or "influential."

"Arcane"means understood by few, mysterious.

"Lucid"means expressed clearly, or intelligible.

"Viable" means realistic and capable of meeting with success, or "feasible."

"Blatant:" lacking in subtlety, or obvious.

"Erroneous" is used to describe a mistake or something that is incorrect. Correct would be the opposite of Erroneous. Exigent means immediate, Quick means to be fast at something, and Dull means boring. These last three words have no relation to Erroneous in this situation.

Prominent means well-known or famous.

Redundant means no longer useful or needed.

"Negligible" means so small it's not worth considering, or "insignificant."

Genuine means that something is really what it claims to be, or authentic.

Superfluous means more than is necessary. Thus, the correct answer choice is "extra."

Profound means wise, intense, or deep.

Implicit means implied but not plainly expressed, or suggested.

Implausible means not seeming reasonable, or unlikely.

Substantial means of considerable importance or worth.

Controversial means giving rise to public disagreement, or disputed.

“Erroneous” is an adjective that describes a mistaken or incorrect belief. “Accurate” is an antonym. "Fallible" means imperfect.