Synonyms|630Antonyms|95|Broader|3Narrower|0Related|637

73 entries under clandestine topic. ×

3
conspiratorial(adjective, underground, undisclosed, sneaky)
2
closet(noun, adjective, hidden, underground)
2
incognito(secret, hidden, spy, underground)
2
undisclosed(adjective, underground)
1
camouflaged(secret, hidden, underground, undisclosed)
1
cloak-and-dagger(hidden, underground, fraudulent, undisclosed)
1
cloaked(secret, hidden, underground, sneaky)
1
confidential(secret, hidden, spy, underground)
1
disguised(secret, hidden, underground, sneaky)
1
dissembled(secret, hidden, underground, undisclosed)
1
hush-hush(adjective, deceitful, secret, hidden)
1
inside(sharp, smart, intelligent, prudent, clever)
1
masked(secret, hidden, underground, sneaky)
1
obscure(ambiguous, rambling, underground, incidental)
1
out-of-the-way(ambiguous, rambling, underground, incidental)
1
sneak(underground, undisclosed)
1
sub-rosa(adjective, cunning, deceitful, secret)
1
under-the-table(secret, private, hidden, sneaky)
1
unrevealed(adjective, underground, undisclosed)
1
veiled(adjective, secret, private, hidden)
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ChicagoSmart Define. 2015. "underhand thesaurus" https://smartdefine.org/underhand/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, underhand thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/underhand/thesaurus/synonyms>.
MLASmart Define. "underhand thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/underhand/thesaurus/synonyms>