54 entries under secret topic. ×

4
hole-and-corner(private, hidden, spy, sneaky)
4
slinking(adjective, private, hidden, sneaky)
3
arcane(adjective, obscure, strange, unknown)
3
buttoned up(verb, adjective, phrasal verb, concealment)
3
cagey(adjective, sneaky, stealthy)
3
confidential(adjective, hidden, spy, clandestine)
3
disguised(adjective, hidden, clandestine, sneaky)
3
latent(adjective, sneaky, stealthy)
3
reserved(adjective, concealment, sneaky, stealthy)
3
reticent(adjective, concealment, sneaky, stealthy)
3
sub-rosa(adjective, dishonest, clandestine, sneaky)
3
under wraps(expression, adjective, dishonest, hidden)
3
underneath(hidden, spy, covert)
2
classified(adjective, obscure, unknown, clandestine)
2
fraudulent(dishonest, cunning, deceitful, dubious)
2
incognito(close, hidden, spy, clandestine)
2
on the sly(expression, idiom, private, hidden)
2
restricted(adjective, clandestine, underground, undisclosed)
2
retired(adjective, sneaky, stealthy)
2
stealth(noun, hidden, spy, covert)
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APASmart Define. (2015). furtive thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/furtive/thesaurus/synonyms
ChicagoSmart Define. 2015. "furtive thesaurus" https://smartdefine.org/furtive/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, furtive thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/furtive/thesaurus/synonyms>.
MLASmart Define. "furtive thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/furtive/thesaurus/synonyms>