The capability of a person or argument to convince or persuade someone to accept a desired way of thinking.(noun)
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Use "persuasiveness" in a sentence
"Well, persuasiveness is in the mind of the beholder."
"He did not hamper his exposition, like Hering, by a subsidiary hypothesis of vibrations which may or may not be true, which burdens the theory without giving it greater carrying power or persuasiveness, which is based on no objective facts, and which, as"
"But recall it is Bart himself who has set the criterion as "persuasiveness" rather than "soundness"."