44 entries under underground topic. ×

25
hidden(verb, adjective, obscure, strange, deep)
22
concealed(verb, adjective, obscure, dark, strange)
8
obscured(verb, adjective, secret, shady, hidden)
5
ambiguous(adjective, obscure, unknown, clandestine)
4
arcane(adjective, obscure, strange, deep, mysterious)
4
sneak(secret, clandestine, undisclosed)
3
sub rosa(expression, adjective, secret, clandestine)
2
dissembled(verb, secret, hidden, clandestine)
1
close(obscure, secret, unknown, hidden)
1
deep(obscure, mysterious, unknown, clandestine)
1
enigmatical(obscure, strange, unknown, clandestine)
1
incog(secret, hidden, underhanded, covered)
1
incognito(secret, hidden, clandestine, underhanded)
1
privy(adjective, secret, hidden, clandestine)
1
secluded(obscure, secret, unknown, hidden)
1
sly(adjective, secret, private, hidden, clandestine)
1
sneaky(adjective, secret, private, hidden, clandestine)
1
strange(obscure, unknown, clandestine, undisclosed)
1
underhanded(secret, hidden, clandestine, undisclosed)
1
unsuspected(secret, hidden, clandestine, underhanded)
<123>
10 years ago|8.7k views|share |citing 
APASmart Define. (2016). veiled thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/veiled/thesaurus/synonyms
ChicagoSmart Define. 2016. "veiled thesaurus" https://smartdefine.org/veiled/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, veiled thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/veiled/thesaurus/synonyms>.
MLASmart Define. "veiled thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/veiled/thesaurus/synonyms>