secretly
adverb
[ ˈsiːkrɪtli ]
• in a secret way; without others knowing.
• "the two were secretly married in 1751"
Similar:
covertly,
without anyone knowing,
in secret,
in private,
privately,
in confidence,
confidentially,
behind closed doors,
behind the scenes,
behind someone's back,
under cover,
under the counter,
discreetly,
unobserved,
quietly,
furtively,
stealthily,
on the sly,
on the quiet,
privily,
conspiratorially,
clandestinely,
on the side,
sub rosa,
in camera,
on the q.t.,
in one's heart,
in one's heart of hearts,
in one's innermost thoughts,
