24 entries under unknown topic. ×

1
obscure(secret, hidden, underground, concealed)
1
recondite(secret, hidden, underground, concealed)
1
shrouded(secret, hidden, clandestine, concealed)
0
unseen(secret, hidden, underground, concealed)
<12>
11 years ago|10k views|share |citing 
APASmart Define. (2015). surreptitious thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/surreptitious/thesaurus/synonyms
ChicagoSmart Define. 2015. "surreptitious thesaurus" https://smartdefine.org/surreptitious/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, surreptitious thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/surreptitious/thesaurus/synonyms>.
MLASmart Define. "surreptitious thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/surreptitious/thesaurus/synonyms>