presumptive

1. Based on presumption or conjecture; inferred, likely, presumed.

2. (often law) Chiefly in presumptive evidence: providing a reasonable basis for a certain presumption or conclusion to be drawn.Examples: "The perſon in this ſituation [having a mere right of property without possession or the right of possession of the property] may have the true ultimate property of the lands in himſelf: but by the intervention of certain circumſtances, either by his ovvn negligence, the ſolemn act of his anceſtor, or the determination of a court of juſtice, the preſumptive evidence of that right is ſtrongly in favour of his antagoniſt; vvho has thereby obtained the abſolute right of poſſeſſion."; "Though we had seen no land since leaving Calloa, Cape Horn was said to be somewhere to the West of us; and though there was no positive evidence of the fact, the weather encountered might be accounted pretty good presumptive proof."often