Find Antonyms

plausibility Antonyms

Opposite of plausibility

Because the opposite of plausibility shifts with each meaning, the antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• noun (Context 1)

The quality of seeming reasonable, probable, or worthy of belief.

Usage Example

"The historians questioned the implausibility of the newly discovered diary until carbon dating confirmed its age."

Strongest
implausibility
improbability
Strong
unlikelihood
incredibility
absurdity

• noun (Context 2)

Superficial persuasiveness or smoothness of manner, often intended to win trust or conceal a lack of substance.

Usage Example

"Beneath the smooth candor of his sales pitch lay several unverified financial assumptions."

Strong
candor
sincerity

Similar words to plausibility

Words similar to plausibility shift depending on context. Common synonyms include:

believability
credibility
reasonableness
likelihood
speciousness
probability
persuasiveness
feasibility
See all synonyms of plausibility

• Nearby Words

platonics
platy
plaudit
plausibility
plausible
plausibly
play

Cite this Entry

Wordmom. (2026). Antonyms for Plausibility. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/plausibility
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