the GNU version of the Collaborative International Dictionary of English
ad. In a conscientious manner; as a matter of conscience; hence; faithfully; accurately; completely.
The Century Dictionary and Cyclopedia
In a conscientious manner; according to the dictates of conscience; with a strict regard to right and wrong.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. with extreme conscientiousness
Word Usage
"As soon as I reached Washington, Miss Anthony ordered me to remain conscientiously in my own apartment and to prepare a speech for delivery before the committees of the Senate and House, and another, as President, for the opening of the council."