Is “Believability” a Scrabble word?
Yes
BELIEVABILITY
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Believability
noun
1.The state or quality of being believable.
Synonyms: believableness, credibility, plausibility