Synonyms|410Antonyms|71|Broader|1Narrower|7Related|371

61 entries under expression topic. ×

6
under wraps(adjective, idiom, show, dishonest)
3
sub rosa(adjective, idiom, show, secret)
3
under an eclipse(idiom, concealment)
2
in ambush(idiom, clandestine, underground, undisclosed)
2
in the dark(idiom, reticent, unknown, taciturn)
2
hush hush
2
in a cloud(idiom, concealment)
2
in a fog(idiom, concealment)
2
in disguise(idiom, adverb, concealment, furtively)
2
in hiding(idiom, concealment)
2
in secret
2
in the background(idiom, mysterious, reticent, taciturn)
2
on the QT(adjective, idiom, adverb, dishonest)
2
under cover(adjective, adverb, sly, clandestine)
2
wrapped in clouds(idiom, concealment)
1
behind the curtain
1
behind the scenes
1
behind the veil
1
buttoned up(mysterious, private, reticent, taciturn)
1
by stealth(adverb, clandestine, secretly, underhandedly)
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APASmart Define. (2015). undercover thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/undercover/thesaurus/synonyms
ChicagoSmart Define. 2015. "undercover thesaurus" https://smartdefine.org/undercover/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, undercover thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/undercover/thesaurus/synonyms>.
MLASmart Define. "undercover thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/undercover/thesaurus/synonyms>