surreptitious

Từ điển American Heritage Dictionary 4th

sur·rep·ti·tious (sûr'əp-tĭshʹəs)adj.
1. Obtained, done, or made by clandestine or stealthy means.
2. Acting with or marked by stealth. See Synonyms at secret. [Middle English, from Latin surreptīcius, from surreptus, past participle of surripere, to take away secretly : sub-, secretly; see sub- + rapere, to seize; See rep- in Indo-European Roots.] sur'rep·tiʹtious·ly adv.sur'rep·tiʹtious·ness n.

• Từ đồng nghĩa / Synonyms:
  clandestine, cloak-and-dagger, hole-and-corner(a), hugger-mugger, hush-hush, secret, undercover, underground, furtive, sneak(a), sneaky, stealthy