Synonyms|110Antonyms|3|Broader|1Narrower|0Related|37

26 entries under secret topic. ×

3
private(adjective, hidden, sneaky, covert)
2
on the QT(expression, adjective, idiom, adverb)
2
surreptitious(adjective, sneaky)
1
clandestine(adjective, adverb, private, hidden)
1
covert(adjective, private, hidden, sneaky)
1
hidden(adjective, private, sneaky, covert)
1
hole-and-corner(adjective, private, hidden, fraudulent)
1
hush-hush(adjective, adverb, clandestine, quietly)
1
sneaking(adjective, private, hidden, fraudulent)
1
sub-rosa(adjective, private, hidden, covert)
1
under-the-table(adjective, private, hidden, sneaky)
1
under wraps(expression, adjective, adverb, clandestine)
1
undercover(adjective, adverb, private, hidden)
1
underground(adjective, unusual, radical, secretive)
0
avant garde(expression, subversive)
0
fraudulent(adjective, private, hidden, sneaky)
0
furtive(adjective, private, hidden, sneaky)
0
secretive(private, hidden, subversive, dissident)
0
skulking(adjective, private, hidden, sneaky)
0
slinking(adjective, private, hidden, sneaky)
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APASmart Define. (2015). on the sly thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/on_the_sly/thesaurus/synonyms
ChicagoSmart Define. 2015. "on the sly thesaurus" https://smartdefine.org/on_the_sly/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, on the sly thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/on_the_sly/thesaurus/synonyms>.
MLASmart Define. "on the sly thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/on_the_sly/thesaurus/synonyms>