(adv) invisibly
secretly
privately
(adv) at all times
at any time
in rain or shine
reliably
(adv) openly and covertly
implicitly and explicitly
(exp) (1) to stay bottled up inside oneself
to be introverted
(2) to have a melancholic appearance, atmosphere (of a person, object, place)
to have a gloomy appearance
(exp) (1) to stay bottled up inside oneself
to be introverted
(2) to have a melancholic appearance, atmosphere (of a person, object, place)
to have a gloomy appearance
(exp) under cover of night
(exp) to hide behind a door