The handwriting clearly belonged to an unstable, conniving, furtive, shallow creep.
Sanger turned birth control from a furtive, underground pursuit into an international movement.
He fancied himself a Marxist, lived in rooming houses under aliases and was a furtive, nasty man.
Our prayer and spiritual life was furtive even though we were all drawing on it to make it through rough and trying days.
And it is Mark and Scott—not “Chad and Ted”—who partake of cigarettes and “furtive man-on-man action.”
After stealing a furtive glance at him the girl took a step backward.
But his furtive movements had not the serene impassibility of the somnambulist.
Vona found a sort of furtive uneasiness in the way he glanced out of the window and fingered his vest-pocket equipment.
Then, after a furtive glance around, he fetched the poker from the fireplace.
Railsford gave a furtive look down the table, and encountered the eyes of Mr Bickers fixed discontentedly on him.
late 15c. (implied in furtively), from French furtif, from Latin furtivus "stolen, hidden, secret," from furtum "theft, robbery," from fur (genitive furis) "thief," probably from PIE *bhor-, from root *bher- (1) "to carry" (see infer). Related: Furtiveness.