listen to the pronunciation of furtive
Englisch - Englisch
Exhibiting guilty or evasive secrecy

But that was merely a piece of furtive knowledge which he happened to possess because his memory was not satisfactorily under control.

stealthy or sly, like the actions of a thief
{a} stolen, gotten by stealth, secret
Stolen; obtained or characterized by stealth; sly; secret; stealthy; as, a furtive look
disapproval If you describe someone's behaviour as furtive, you disapprove of them behaving as if they want to keep something secret or hidden. With a furtive glance over her shoulder, she unlocked the door and entered the house. behaving as if you want to keep something secret = secretive (furtif, from fur )
secret and sly or sordid; "backstairs gossip"; "his low backstairs cunning"- A L Guerard; "backstairs intimacies"; "furtive behavior"
having hidden motives
marked by quiet and caution and secrecy; taking pains to avoid being observed; "a furtive manner"; "a lurking prowler"; "a sneak attack"; "stealthy footsteps"; "a surreptitious glance at his watch"; "someone skulking in the shadows"
{s} surreptitious (i.e. a glance); secret, stealthy; sly, shifty
furtive glance
quick peek, look made quickly and secretly
in a furtive manner; "the soldiers were furtively crawling through the night
in a furtive manner; "the soldiers were furtively crawling through the night"
In a furtive manner
secretly, stealthily; slyly, shiftily
Stealthily by theft
{i} elusiveness, sneakiness; craftiness, slyness
a disposition to be sly and stealthy and to do things surreptitiously
The quality of being furtive