She argued 'convincingly' [='persuasively'] that more money should be given to public schools.
There is no 'convincing' evidence to support his theory.
Your argument/story isn't very 'convincing'.
(..) we'll have on our hands. We can't let that system go online. Guys... you'll have a hard time convincing Tolley to delay a billion-dollar project over... what, some sharks and a hunch? Yeah, he's right. (..)2002 Shark Attack 3: Megalodon