shamelessly

without shame; "he unashamedly abandoned the project when he realized he would not gain from it"

उन लोगों ने बड़ो का अपमान किया और अपनी अपरिपक्वता तथा लज्जाहीनता का परिचय दिया|

I have shamelessly taken from these books facts and ideas; there is nothing original in what I have written.