In an indiscreet manner; without prudence or judgment.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. without discretion or wisdom or self-restraint
Word Usage
"The President gave to Justice Oliver Wendell Holmes, of the Supreme Court, who was going abroad for the summer, a letter which he was "indiscreetly" to show Mr. Chamberlain, Mr. Balfour, and two or three other prominent Englishmen."