Akademik

furtive
adjective /ˈfɜːtɪv,ˈfɜːɾɪv,ˈfɝ.ɾɪv/
a) stealthy

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

b) Exhibiting guilty or evasive secrecy.
Syn: surreptitious, clandestine, conspiratorial, covert, crafty, scheming, shifty

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