Adjective has 2 senses

• assumptive(s = adj.all) assuming, presumptuous - excessively forward; "an assumptive person"; "on a subject like this it would be too assuming for me to decide"; "the duchess would not put up with presumptuous servants"


• assumptive(s = adj.all) - accepted as real or true without proof; "assumptive beliefs"; "the assumed reason for his absence"

Derived form verb assume₁