presumptuous [Pri-zuhmp-choo-uh s]
adjective. overconfident, too boldly, out of the boundary and limit
"Ben Affleck, who accepted the film award for 'Gone Girl', said, he hoped it didn't appear presumptuous that he prepared a speech. "
"It's a little presumptuous of you to assume that I'm your new best friend just because I invited you along."
"It would be presumptuous for me to say what your dream means to you."
http://www.vocabulary.com/dictionary/presumptuous