1. A possible option or choice that appears reasonable, credible, and worthy of consideration, though not necessarily proven or certain
The detective considered several plausible alternatives to explain the crime.
O detetive considerou várias alternativas plausíveis para explicar o crime.
2. An option that seems likely to be true or valid based on available evidence
There is a plausible alternative explanation for the economic downturn.
Existe uma explicação alternativa plausível para a recessão econômica.