Synonyms of plausibility

2 Syllables
prospect, color, tossup, chance, soundness
3 Syllables
presumptions, presumption, solidness
4 Syllables
trustworthiness, likeliness, integrity, workableness, validity, likelihood, solidity, credibleness, plausibleness, reliableness
5 Syllables
credibility, tenability, probability, attainableness, probabilities, reliability, believableness, possibility, creditableness
6 Syllables
believability, satisfactoriness, achievability, practicability, conceivability, creditability
7 Syllables
verisimilitude