Persuasive (adjective)

1. Likely to persuade or convince.
2. Able to persuade or convince.

Origin:

Late latin persuasivus, from latin persuadere.

Examples:

1. The argument was persuasive.
2. The evidence was persuasive.
3. The speaker was persuasive.
4. The lawyer's persuasive argument won the case.
5. The persuasive advertising campaign increased sales.