Presumptive

1. Based on presumption or probability; grounded on probable evidence; probable; as, presumptive proof.
2. Presumptuous; arrogant.
Presumptive evidence (Law),
that which is derived from circumstances which necessarily or usually attend a fact, as distinct from direct evidence or positive proof; indirect or circumstantial evidence. “Presumptive evidence of felony should be cautiously admitted.” Blackstone. The distinction, however, between direct and presumptive (or circumstantial) evidence is now generally abandoned; all evidence being now more or less direct and more or less presumptive.
Presumptive heir .
See Heir presumptive, under Heir.