Synonyms|224Antonyms|62|Broader|0Narrower|0Related|264
1
under security
1
undercover(secret, unknown, hidden, underground, concealed)
1
undisclosable
1
undiscoverable
1
undiscovered
1
undivulgable
1
unexplained
1
unexplored
1
unfamiliar
1
unfathomed
1
unheard
1
unheard-of
1
unidentified
1
unintelligible(obscure, unknown, clandestine, underground, concealment)
1
uninvestigated
1
unknowable
1
unofficial(adjective, personal, confidential, hush-hush)
1
unperceived
1
unplumbed
1
unrevealable
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APASmart Define. (2015). undisclosed thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/undisclosed/thesaurus/synonyms
ChicagoSmart Define. 2015. "undisclosed thesaurus" https://smartdefine.org/undisclosed/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, undisclosed thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/undisclosed/thesaurus/synonyms>.
MLASmart Define. "undisclosed thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/undisclosed/thesaurus/synonyms>