What is plausible?
- Seemingly or apparently valid, likely, or acceptable; credible: a plausible excuse.
- Giving a deceptive impression of truth or reliability.
- Disingenuously smooth; fast-talking: "Ambitious, unscrupulous, energetic, ... and plausible,—a political gladiator, ready for a 'set-to' in any crowd” ( Frederick Douglass).