You describe something as scanty when there is less of it than you think there should be. So far, what scanty evidence we have points to two suspects
If someone is wearing scanty clothing, he or she is wearing clothes which are sexually revealing. a model in scanty clothing. + scantily scanti·ly a troupe of scantily-clad dancers
lacking in amplitude or quantity; "a bare livelihood"; "a scanty harvest"; "a spare diet"
{s} lacking, having an inadequate supply; meager, barely sufficient, just enough; limited, deficient