convincing (adj.) Copy link Outline 1. ad persuadendum aptus, accommodatus2. Use magnus, quantus, etc.3. persuāsĭbĭlis • convincing (adj.): 1. ad persuadendum aptus, accommodatus: see verb. 2. Use magnus, quantus, etc.: as, it is a c. proof, magno argumento est (foll. by acc. and inf.): Cic. 3. persuāsĭbĭlis: Quint. Phr.: c. arguments, argumenta firma ad probandum, Cic. (if by way of refutation, ad errores refellendos, convincendos: v. to refute).