furtive

In between darting to furtive meetings about the fledgling movement, King managed to win the women's doubles at Queen's that week.

Only the occasional woman or old man appears on the streets, making furtive bread runs before quickly heading home; young men are nowhere to be found.

Theirs is not a wholly furtive relationship, but it is not altogether an open one either.

That made it close enough for him to make furtive trips to get belongings from his home.

Few vehicles brave the abandoned boulevards; those that do move in furtive dashes: They barrel down the road, slow near the still-smoking ruins of a freshly struck building, then race away.