presumption

noun

1.
an assumption that is taken for granted
given precondition
Derived from:
presume
2.
(law) an inference of the truth of a fact from other facts proved or admitted or judicially noticed
Derived from:
presume
3.
audacious (even arrogant) behavior that you have no right to
assumption effrontery presumptuousness
Derived from:
presume presumptuous
4.
a kind of discourtesy in the form of an act of presuming
Derived from:
presume presumptuous