1. (a.) Based on presumption or probability; grounded on probable evidence; probable; as, presumptive proof.

2. (a.) Presumptuous; arrogant.

absolute acceptable accounted as adducible admissible alleged apt assumed assumptive attestative attestive authentic based on believable certain circumstantial conceivable conclusive conjectured convincing credible cumulative damning decisive deemed determinative documentary documented evidential evidentiary ex parte eye-witness factual fair final firsthand foreseeable founded on given granted grounded on hearsay hopeful implicit in the cards incontrovertible indicative indisputable inferred irrefutable irresistible justifiable liable likely material nuncupative odds-on overwhelming plausible postulated postulational predicated predictable predictable within limits predicted premised presumable presumed probable probative promising putative rational reasonable reliable reputed sensible significant sound statistically probable suggestive supposed suppositional supposititious suppositive sure symptomatic taken for granted telling tenable understood valid verisimilar weighty