Synonyms|111Antonyms|0|Broader|1Narrower|0Related|6

19 entries under sensitive topic. ×

5
classified(noun, adjective, secret, restricted)
3
secret(adjective, private, hidden, clandestine)
3
under wraps(noun, expression, adjective, underground)
1
backdoor(adjective, close, inside, clandestine)
1
backstairs(adjective, close, inside, clandestine)
1
in ambush(expression, adjective, close, inside)
1
sub-rosa(adjective, close, clandestine, underground)
1
unacknowledged(adjective, close, inside, clandestine)
1
under-the-table(adjective, clandestine, underground, undisclosed)
1
under false pretense(expression, adjective, idiom, close)
0
buttoned up(expression, adjective, sub-rosa)
0
for eyes only(expression, adjective, idiom, exceptional)
0
hidden away(expression, adjective, sub-rosa)
0
kept concealed(expression, adjective, sub-rosa)
0
not for publication(expression, adjective, idiom, exceptional)
0
on the QT(expression, adjective, idiom, private)
0
privileged(adjective, private, confidential, sub-rosa)
0
under the table(expression, adjective, idiom, close)
0
with a lid on(expression, adjective, idiom, sub-rosa)
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APASmart Define. (2015). top secret thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/top_secret/thesaurus/synonyms
ChicagoSmart Define. 2015. "top secret thesaurus" https://smartdefine.org/top_secret/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, top secret thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/top_secret/thesaurus/synonyms>.
MLASmart Define. "top secret thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/top_secret/thesaurus/synonyms>