самонадеянн|о - conceitedly, presumptuously, perkily;
~ость ж. conceit, presumption;
~ый conceited, presumptuous, self-assertive, bumptious.
~ость ж. conceit, presumption;
~ый conceited, presumptuous, self-assertive, bumptious.
Большой англо-русский и русско-английский словарь. 2001.