clandestine Synonyms - page 2

discreetly surreptitiously huggermugger unofficial artful cryptic dark deceitful dern devious discreet fraudulent arcane hypogean confidentially confidential auricular back door backdoor backstairs black catlike clandestinity classified closet hypogeous illegal illicit slinky smuggling sneaking sneak sneaky stealth stealthful stowaway subterranean slinking skulking incognito indigested indirect mysterious mystical occult privy shadow shadowy subterrestrial