47 entries under undisclosed topic. ×

1
unacknowledged(clandestine, underground)
1
under false pretense(expression, idiom, clandestine, underground)
0
abstruse(clandestine, underground)
0
ambiguous(clandestine, underground)
0
clouded(clandestine, underground)
0
covered(clandestine, underground)
0
cryptic(clandestine, underground)
0
enigmatical(clandestine, underground)
0
inside(clandestine, underground)
0
mysterious(quiet, shadowy, clandestine, underground)
0
mystic(clandestine, underground)
0
obscure(clandestine, underground)
0
occult(clandestine, underground)
0
out-of-the-way(clandestine, underground)
0
recondite(clandestine, underground)
0
retired(clandestine, underground)
0
secluded(clandestine, underground)
0
shrouded(secret, hidden, clandestine, underground)
0
strange(clandestine, underground)
0
top-secret(clandestine, underground)
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APASmart Define. (2015). stealthy thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/stealthy/thesaurus/synonyms
ChicagoSmart Define. 2015. "stealthy thesaurus" https://smartdefine.org/stealthy/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, stealthy thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/stealthy/thesaurus/synonyms>.
MLASmart Define. "stealthy thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/stealthy/thesaurus/synonyms>