presumption presumption /priːˈzʌmpʃən/

noun

1. () An assumption that is taken for granted  ( precondition , given , presumption )
   an assumption that is taken for granted
   
2. A kind of discourtesy in the form of an act of presuming  ( presumption )
   a kind of discourtesy in the form of an act of presuming
    His presumption was intolerable
   his presumption was intolerable
   
3. Audacious (even arrogant) behavior that you have no right to  ( assumption , effrontery , presumption , presumptuousness )
   audacious (even arrogant) behavior that you have no right to
    He despised them for their presumptuousness
   he despised them for their presumptuousness
   
4. (law) an inference of the truth of a fact from other facts proved, admitted or judicially noticed  ( presumption )
   (law) an inference of the truth of a fact from other facts proved, admitted or judicially noticed