Synonyms|101Antonyms|1|Broader|0Narrower|0Related|10
1
latent
1
smothered
1
stifled
1
suppressed
1
ulterior
1
unbreatheable
1
under security
1
undisclosable
1
undivulgable
1
undivulged
1
unrevealable
1
unspoken
1
untellable
1
untold
1
unutterable
1
unuttered
1
unwhisperable
0
abstruse(clandestine, underground, undisclosed)
0
ambiguous(clandestine, underground, undisclosed)
0
backdoor(clandestine, underground, undisclosed)
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APASmart Define. (2015). top-secret thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/top-secret/thesaurus/synonyms
ChicagoSmart Define. 2015. "top-secret thesaurus" https://smartdefine.org/top-secret/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, top-secret thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/top-secret/thesaurus/synonyms>.
MLASmart Define. "top-secret thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/top-secret/thesaurus/synonyms>