Furtive

прилагательное 1) скрытый, тайный; незаметный Синоним(ы): stealthy, secret, concealed, clandestine, surreptitious 2) хитрый Синоним(ы): stealthy, sly 3) краденый Синоним(ы): stolen 4) вороватый, не чистый на руку Синоним(ы): thievish

Большой англо-русский словарь

Furtive

adjective Etymology: French or Latin; French furtif, from Latin furtivus, from furtum theft, from fur thief, from or akin to Greek phōr thief; akin to Greek pherein to carry — more at bear 1. a. done by stealth; surreptitious b. expressive of stealth; sly Example: had a furtive look about him 2. obtained underhandedly; stolen Synonyms: see secretfurtively adverbfurtiveness noun

Merriam-Webster's Collegiate Dictionary