Question

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plausible is most opposite in meaning to ______.
a. acceptable
b. believable
c. conceivable
d. impossible

Explanation:

"Plausible" means seemingly reasonable or probable. "Impossible" means not able to occur, exist, or be done, which is the opposite in meaning. Options A (acceptable), B (believable), and C (conceivable) are all related to things that are within the realm of possibility or reason, similar in some sense to "plausible".

Answer:

D. impossible