Synonyms|289Antonyms|73|Broader|7Narrower|5Related|182

34 entries under idiom topic. ×

11
in secret(expression, adverb, concealment, slyly)
8
on the sly(expression, adverb, show, clandestine)
5
by stealth(expression, adverb, show, clandestine)
5
in private(expression, concealment, confidentially)
4
on the quiet(expression, adverb, clandestine, slyly)
3
behind closed doors(expression, slyly, confidentially, surreptitiously)
3
behind the scenes(expression, latency implication)
3
off the record(expression, softly, gently, modestly)
2
in the background(expression, latency implication)
2
in the dark(expression, concealment)
2
under cover(expression, adverb, show, clandestine)
2
under the rose
1
behind the curtain
1
behind the veil
1
in a corner
1
in a whisper
1
in confidence(expression, slyly, confidentially, surreptitiously)
1
in disguise(expression, adverb)
1
in holes and corners(expression, adverb, clandestine, slyly)
1
nobody the wiser
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APASmart Define. (2016). secretly thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/secretly/thesaurus/synonyms
ChicagoSmart Define. 2016. "secretly thesaurus" https://smartdefine.org/secretly/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, secretly thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/secretly/thesaurus/synonyms>.
MLASmart Define. "secretly thesaurus" 19 February 2016. Web. 26 September 2026. <https://smartdefine.org/secretly/thesaurus/synonyms>