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

55 entries under hidden topic. ×

2
on the QT(expression, adjective, idiom, adverb, dishonest)
2
recondite(secret, unknown, underground, concealed)
2
shrouded(obscure, secret, unknown, clandestine)
2
slinking(secret, private, sneak, sneaky)
2
sub-rosa(adjective, dishonest, cunning, deceitful, secret)
2
under-the-table(secret, private, clandestine, sneaky)
2
unknown(secret, clandestine, underground, concealed)
2
veiled(obscure, secret, private, unknown)
1
camouflaged(obscure, secret, clandestine, indirect)
1
dissembled(secret, clandestine, underground, undisclosed)
1
fraudulent(dishonest, cunning, deceitful, secret, private)
1
undisclosed(secret, unknown, underground, concealed)
1
unrevealed(obscure, secret, unknown, concealed)
1
unseen(secret, unknown, underground, concealed)
0
unauthorized(secret, private, sneaky, covert)
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APASmart Define. (2015). undercover thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/undercover/thesaurus/synonyms
ChicagoSmart Define. 2015. "undercover thesaurus" https://smartdefine.org/undercover/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, undercover thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/undercover/thesaurus/synonyms>.
MLASmart Define. "undercover thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/undercover/thesaurus/synonyms>