Synonyms|410Antonyms|71|Broader|1Narrower|7Related|371

62 entries under secret topic. ×

3
clouded(unknown, hidden, underground, concealed)
3
mysterious(adjective, quiet, private, reticent)
3
obscure(adjective, unknown, hidden, concealed)
3
skulking(adjective, private, hidden, sneak)
3
sneaking(adjective, dishonest, cunning, deceitful)
3
sneaky(adjective, quiet, dishonest, cunning)
3
sub rosa(expression, adjective, idiom, show)
3
underneath(adjective, hidden, spy, covert)
3
disguised(adjective, obscure, hidden, clandestine)
3
incognito(adjective, adverb, informal, hidden)
3
mystic(adjective, unknown, hidden, underground)
3
obscured(adjective, hidden, underground, concealed)
3
sly(adjective, quiet, dishonest, cunning, deceitful)
3
stealth(noun, adjective, hidden, spy)
2
esoteric(unknown, hidden, underground, concealed)
2
abstruse(unknown, hidden, underground, concealed)
2
cloaked(obscure, unknown, hidden, clandestine)
2
closet(noun, adjective, sly, clandestine)
2
covered(obscure, unknown, hidden, concealed)
2
creep(adjective, hidden, spy, covert)
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APASmart Define. (2015). undercover thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/undercover/thesaurus/synonyms
ChicagoSmart Define. 2015. "undercover thesaurus" https://smartdefine.org/undercover/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, undercover thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/undercover/thesaurus/synonyms>.
MLASmart Define. "undercover thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/undercover/thesaurus/synonyms>