What's the adjective for convincedness? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs convict and convince which may be used as adjectives within certain contexts.
“Freddie Prinze, Jr. would not make a convincible Fred, as characterised in the show.”
“You have to rethink on your presentation to be more convincible, or you will surely be considered as an mouth piece of an organization and nothing more.”
“In the end you will be the one to decide whether our price-performance ratio is convincible.”
convinced
In a state of believing, especially from evidence but not necessarily.
“I would suspect that those who are not at all convinced by it have distinct prejudices of their own and are not too convinceable!”
“The convinceable young man stands in the same relationship to the vicar as the convinceable reader of the Emile to Rousseau.”
“Cummings says that plenty of people in his district are against the war too, but reminds that his district supported Obama's re-election by wide margins, so he thinks that they are still convinceable.”