Synonyms|382Antonyms|120|Broader|6Narrower|0Related|370

119 entries under adjective topic. ×

2
on the quiet(expression, idiom, adverb, dishonest)
2
personal(special, intimate, confidential, hush-hush)
2
recondite(secret, unknown, hidden, underground)
2
reserved(secret, sneaky, stealthy)
2
retired(secret, sneaky, stealthy)
2
secluded(secret, unknown, hidden, personal)
2
sub rosa(expression, idiom, adverb, show)
2
under-the-counter(secret, sly)
2
undisclosed(secret, unknown, hidden, personal)
2
unknown(secret, hidden, underground, concealed)
1
cautious(sneaky, covert, secretive)
1
crafty(dishonest, cunning, deceitful, sneaky)
1
disorderly
1
huggermugger(show, secret)
1
illegal
1
illegitimate(secret, sly)
1
improper(immoral, illicit)
1
in holes and corners(expression, adverb, secret, sly)
1
off the record(expression, special, intimate, personal)
1
on the sly(expression, idiom, adverb, secret)
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APASmart Define. (2015). clandestine thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/clandestine/thesaurus/synonyms
ChicagoSmart Define. 2015. "clandestine thesaurus" https://smartdefine.org/clandestine/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, clandestine thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/clandestine/thesaurus/synonyms>.
MLASmart Define. "clandestine thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/clandestine/thesaurus/synonyms>