1. Based on presumption, probability, conjecture, hypothesis or belief
    By late May, he was already considered his party's presumptive nominee.
  2. making presumptions; behaving as one who presumes, who assumes that which they perhaps shouldn't.
    Forgive me for being presumptive, but aren't you and Mark engaged?

The above text is a snippet from Wiktionary: presumptive
and as such is available under the Creative Commons Attribution/Share-Alike License.

Need help with a clue?
Try your search in the crossword dictionary!