Definition of surreptitious:
classified, on the quiet, hidden, hugger-mugger, concealed, backstairs, confidential, hush-hush, secret, in strict confidence, hole-and-corner, sneak, shadowy, mysterious, covert, stealth, secretive, clandestine, underground, skulking, behind-the-scenes, study at secret, privy, cloak-and-dagger, lurking, stealthy, underhanded, sneaking, undercover, sneaky, private, furtive, underhand.
- "Belles and Ringers", Hawley Smart.
From outside came a shout, interrupting these reflections, and Sim was at once on his feet facing the front door, with a surreptitious hand inside his shirt, and one eye covertly watching Spurrier, even as he looked out.- "The Law of Hemlock Mountain", Hugh Lundsford.
- "Kenny", Leona Dalrymple.