Synonyms|418Antonyms|8|Broader|0Narrower|0Related|44

202 entries under adjective topic. ×

2
screened(obscure, dark, isolated, reclusive)
2
secluded(obscure, dark, isolated, reclusive)
2
sequestered(obscure, dark, isolated, reclusive)
2
shielded
2
skulking(recreant, secretive, conspiratorial, falsehearted)
2
sneaking(sneak, recreant, sub-rosa, falsehearted)
2
stealthy(secret, spy, covert, recreant)
2
surreptitious(secret, spy, covert, recreant)
2
under wraps(expression, adverb, cover, obscure)
2
undercover(adverb, sly, clandestine, fraudulent)
2
underground(secret, spy, covert)
2
unknown(obscure, dark, unseen)
2
veiled(underhanded, privy)
1
clandestine(adverb, secret, spy, covert)
1
confidential(secret, spy, covert)
1
hush-hush(adverb, secret, spy, clandestine)
1
on the QT(expression, idiom, adverb, secret)
1
on the quiet(expression, idiom, adverb, fickle)
1
on the sly(expression, idiom, adverb, clandestine)
1
private(secret, isolated, spy, reclusive)
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APASmart Define. (2015). under cover thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/under_cover/thesaurus/synonyms
ChicagoSmart Define. 2015. "under cover thesaurus" https://smartdefine.org/under_cover/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, under cover thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/under_cover/thesaurus/synonyms>.
MLASmart Define. "under cover thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/under_cover/thesaurus/synonyms>