Covertly
The Century Dictionary and Cyclopedia
Secretly; closely; in private; insidiously.
the GNU version of the Collaborative International Dictionary of English
adverb.
Secretly; in private; insidiously.
Wiktionary, Creative Commons Attribution/Share-Alike License
adverb.
In a
covert
manner,
secretly
.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adverb.
in a covert manner