ETYM Latin clandestinus, from clam secretly; akin to celare, Eng. conceal: cf. French clandestin.
Conducted with or marked by hidden aims or methods; SYN. cloak-and-dagger, hole-and-corner, hugger-mugger, hush-hush, on the quiet, secret, surreptitious, undercover, underground.
ETYM Latin furtivus, from furtum theft, from fur thief, akin to ferre to bear: cf. French furtif. Related to Fertile.
Marked by quiet and caution and secrecy; taking pains to avoid being observed; SYN. lurking, skulking, sneak, sneaky, stealthy, surreptitious.
stealthy / stelθi /
Množina reči stealthy je stealthies.
Done by stealth; accomplished clandestinely; unperceived; secret; furtive; sly.
surreptitious / sʌrəptɪʃəs /
Množina reči surreptitious je surreptitiouses.
ETYM Latin surreptitius, or subreptitius, from surripere, subripere, to snatch away, to withdraw privily; sub- under + rapere to snatch. Related to Sub-, and Ravish.
Done or made by stealth, or without proper authority; made or introduced fraudulently; clandestine.
underground / ʌndərɡrɑːwnd /
Množina reči underground je undergrounds.
1. Being below the surface of the ground
2. Done or occurring out of sight; secret; clandestine.