A ~ action is done secretly.
He made a ~ entrance to the club through the little door in the brick wall...
= furtive
ADJ
~ly
Surreptitiously Mark looked at his watch.
ADV: ADV with v
A ~ action is done secretly.
He made a ~ entrance to the club through the little door in the brick wall...
= furtive
ADJ
~ly
Surreptitiously Mark looked at his watch.
ADV: ADV with v
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012