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

5 entries under unauthorized topic. ×

2
on the QT(expression, adjective, idiom, adverb, secret)
1
sub-rosa(adjective, secret, private, hidden, covert)
1
under cover(expression, adjective, adverb, clandestine, recreant)
0
fraudulent(adjective, secret, private, hidden, sneaky)
0
veiled(adjective, secret, private, hidden, sneaky)
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APASmart Define. (2015). on the sly thesaurus. Retrieved September 28, 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 28, 2026).
HarvardSmart Define 2015, on the sly thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/on_the_sly/thesaurus/synonyms>.
MLASmart Define. "on the sly thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/on_the_sly/thesaurus/synonyms>