Meaning : An assumption that is taken for granted.
Synonyms : given, precondition
Meaning : (law) an inference of the truth of a fact from other facts proved or admitted or judicially noticed.
Meaning : Audacious (even arrogant) behavior that you have no right to.
Example :
He despised them for their presumptuousness.
Synonyms : assumption, effrontery, presumptuousness
Meaning : A kind of discourtesy in the form of an act of presuming.
Example :
His presumption was intolerable.
Presumption meaning in Bengali (Bangla).