Synonyms|479Antonyms|83|Broader|6Narrower|0Related|205
2
subterranean
2
tight-lipped(adjective, secret, sneaky, stealthy)
2
two-faced(dishonest, cunning, deceitful, sneaky, underhanded)
2
under-the-counter(hidden, fraudulent)
2
under cover(expression, secret, spy, covert, recreant)
2
under the table(expression, adjective, idiom)
1
adumbral
1
astute(mean, smooth, false, cunning, knowing)
1
back door
1
behind-the-scenes
1
cagy
1
camouflaged(close, obscure, secret, unknown, hidden)
1
canny(adjective, mean, smooth, cunning, knowing)
1
chiseling
1
clammed up(expression, mysterious, private, reticent, taciturn)
1
clandestinely
1
cloak-and-dagger(obscure, unknown, hidden, clandestine, underground)
1
closet(adjective, obscure, unknown, hidden, clandestine)
1
collusive
1
covinous
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APASmart Define. (2015). furtive thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/furtive/thesaurus/synonyms
ChicagoSmart Define. 2015. "furtive thesaurus" https://smartdefine.org/furtive/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, furtive thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/furtive/thesaurus/synonyms>.
MLASmart Define. "furtive thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/furtive/thesaurus/synonyms>