RichThesaurus
slyly
slyly
synonyms
trickily
cunningly
surreptitiously
covertly
knavishly
furtively
artfully
foxily
craftily
on the sly
secretly
on the quiet
clandestinely
stealthily
behind someone's back
in secret
sneakily
in holes and corners
obliquely
on the side
askance
hush-hush
in camera
privately
under the counter
on the QT
indirectly
sideways
sidelong
sub rosa
under cover
on the q.t.
by stealth
unobserved
behind closed doors
insidiously
under the table
behind someone’s back
quietly
personally
deceitfully
under wraps
intimately
wildcat
confidentially
undercover
in confidence
without someone's knowledge
privily
underhandedly
more synonyms
slyly
antonyms
openly
publicly
candidly
honestly
overtly
frankly