19 entries under sensitive topic. ×

1
backdoor(close, inside, clandestine, underground)
1
backstairs(close, restricted, inside, clandestine)
1
classified(clandestine, underground, undisclosed, sub-rosa)
1
secret(adjective, clandestine, underground, undisclosed)
1
sub-rosa(close, clandestine, underground, undisclosed)
1
top secret(expression, close, inside, clandestine)
1
unacknowledged(close, inside, clandestine, underground)
1
under-the-table(clandestine, underground, undisclosed, sub-rosa)
1
under false pretense(expression, idiom, close, clandestine)
0
buttoned up(expression, sub-rosa)
0
for eyes only(expression, idiom, sub-rosa)
0
hidden away(expression, sub-rosa)
0
kept concealed(expression, sub-rosa)
0
not for publication(expression, idiom, sub-rosa)
0
on the QT(expression, idiom, clandestine, underground)
0
privileged
0
under the table(expression, idiom, close, inside)
0
under wraps(expression, clandestine, underground, undisclosed)
0
with a lid on(expression, idiom, sub-rosa)
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APASmart Define. (2015). in ambush thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/in_ambush/thesaurus/synonyms
ChicagoSmart Define. 2015. "in ambush thesaurus" https://smartdefine.org/in_ambush/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, in ambush thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/in_ambush/thesaurus/synonyms>.
MLASmart Define. "in ambush thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/in_ambush/thesaurus/synonyms>