2
occult(adjective, obscure, dark, unseen)
2
recondite(adjective, obscure, dark, unseen)
2
screened(adjective, obscure, dark, isolated, reclusive)
2
secluded(adjective, obscure, dark, isolated, reclusive)
2
secretly(adverb, show, clandestine, underhandedly)
2
sequestered(adjective, obscure, dark, isolated, reclusive)
2
shielded
2
skulking(adjective, recreant, secretive, conspiratorial, falsehearted)
2
sneaking(adjective, sneak, recreant, sub-rosa, falsehearted)
2
stealthy(adjective, secret, spy, covert, recreant)
2
surreptitious(adjective, secret, spy, covert, recreant)
2
under wraps(expression, adjective, adverb, cover, obscure)
2
undercover(adjective, adverb, sly, clandestine, fraudulent)
2
underground(adjective, secret, spy, covert)
2
unknown(adjective, obscure, dark, unseen)
2
veiled(adjective, underhanded, privy)
1
above water
1
armored
1
beclouded
1
blind
11 years ago|1.2k views|share |citing 
APASmart Define. (2015). under cover thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/under_cover/thesaurus/synonyms
ChicagoSmart Define. 2015. "under cover thesaurus" https://smartdefine.org/under_cover/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, under cover thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/under_cover/thesaurus/synonyms>.
MLASmart Define. "under cover thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/under_cover/thesaurus/synonyms>