1
unsaid(cover, obscure, dark, equivocal, ulterior)
1
unsolved
1
unspied
1
unspoken
1
unsuspected
1
untalked of(verb, expression, phrasal verb, latency implication)
1
untellable
1
untouched
1
untraced
1
untracked
1
unutterable
1
unuttered
1
unwhisperable
1
unwritten(adjective, latency implication)
1
veiled(obscure, unknown, hidden, imperceptible, concealed)
1
withheld(obscure, dark, secret, unknown, hidden)
0
backdoor(obscure, unknown, clandestine, underground, unrevealed)
0
backstairs(clandestine, underground)
0
bearding
0
behind the scenes(expression, idiom, personal, confidential, hush-hush)
11 years ago|5.2k views|share |citing 
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>