plausibility

noun4

1. •
   A plausible statement, argument etc.
2. •
   The fact of being believable; believability, credibility.
3. •
   (no longer used) The appearance of truth, especially when deceptive; speciousness.

   • Plausibility, I know, can only be unmasked by shewing the absurdities it glosses over, and the simple truths it involves with specious errors. — 1790
4. •
   (no longer used) The quality of deserving applause, praiseworthiness; something worthy of praise.