The quality or state of being capable of being convinced; how easily someone can be persuaded.
From convincible (capable of being convinced) plus -ity, which creates abstract nouns from adjectives. Convincible comes from convince plus -ible (able to be).
Convincibility is a psychological trait—some people have high convincibility and change their minds easily when presented with good evidence, while others are stubbornly fixed in their beliefs. It's essentially measuring how open-minded someone is.
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