In an irreprehensible manner; so as to be irreprehensible; without blame.
The Century Dictionary (Public Domain)
Use "irreprehensibly" in a sentence
"Admonishing her to honour her father and mother in law, to love her husband, to take care of the family, to govern the house, and to behave herself irreprehensibly."
"No congressman/woman has power to impeach Obama, unless he violates a particular law severely and clearly worthy of impeachment, or behaves so irreprehensibly as Clinton or others in WH."