Clandestine

прилагательное тайный, скрытый, секретный; нелегальный Синоним(ы): stealthy

Большой англо-русский словарь

Clandestine

adjective Etymology: Middle French or Latin; Middle French clandestin, from Latin clandestinus, from clam secretly; akin to Latin celare to hide — more at hell marked by, held in, or conducted with secrecy; surreptitious Example: a clandestine love affair Synonyms: see secretclandestinely adverbclandestineness nounclandestinity noun

Merriam-Webster's Collegiate Dictionary