The definition of persuasive is someone or something with the power to convince.
An example of persuasive is an argument that changes someone's mind.
having the power, or tending, to persuade
Origin of persuasiveFrench persuasif ; from Medieval Latin persuasivus ; from Classical Latin persuasus, past participle of persuadere
Tending or having the power to persuade: a persuasive argument.
From Medieval Latin persuasivus, from Latin past participle stem of persuadere + -ivus