Definition of Plausible:

reasonable, believable

Synonyms of Plausible:

credible, probable, persuasive, possible, logical, valid, conceivable, tenable, creditable, likely, presumable, smooth, sound, like enough, supposable, very likely

Opposite/Antonyms of Plausible:

unreasonable, impossible, implausible, irrational, untenable, unlikely, unimaginable, unbelievable, inconceivable, improbable

Sentence/Example of Plausible:

I recur to it here as a plausible suggestion only, in connection with my theme.

The plausible and polite manner of the stranger was effectual with George.

But always she had been met with a plausible excuse or a direct refusal.

He flung out a hand with the plausible design of grasping Kirkwood by the collar.

This explanation is plausible; but I do not find it adequate.

Accounts for his plausible behaviour, and specious promises and proposals.

She stammered, and I realized that she had no plausible plan.

The reasoning may be plausible, but it is no better than sophistry.

This remark appeared so plausible that nothing further was said upon the subject.

One might; but he was only gaining time for a plausible answer.