Dictionary.net

with discretion; prudently and with wise self-restraint; "I sent for the sergeant of the platoon both men were in and asked him to try to find out discreetly what lay behind this"

with discretion; prudently and with wise self-restraint; "I sent for the sergeant of the platoon both men were in and asked him to try to find out discreetly what lay behind this"

adv. In a discreet manner; prudently.

Prudently, cautiously.