Alphabet Filter:


Definition of surreptitious:

  1. Done by stealth or without authority; made or introduced fraudulently.


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.

Usage examples: