Synonyms|418Antonyms|8|Broader|0Narrower|0Related|44
1
clandestine(adjective, adverb, secret, spy, covert)
1
confidential(adjective, secret, spy, covert)
1
covertly(adverb, show, furtively, incognito)
1
enveloped
1
floored
1
high and dry(expression, idiom)
1
housed
1
hush-hush(adjective, adverb, secret, spy, clandestine)
1
in disguise(expression, adverb, furtively, incognito)
1
in the clear(expression, idiom)
1
inside(adverb, indoors)
1
lurking
1
mantled
1
muffled
1
on the QT(expression, adjective, idiom, adverb, secret)
1
on the quiet(expression, adjective, idiom, adverb, fickle)
1
on the sly(expression, adjective, idiom, adverb, clandestine)
1
packaged
1
paved
1
private(adjective, secret, isolated, spy, reclusive)
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APASmart Define. (2015). under cover thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/under_cover/thesaurus/synonyms
ChicagoSmart Define. 2015. "under cover thesaurus" https://smartdefine.org/under_cover/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, under cover thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/under_cover/thesaurus/synonyms>.
MLASmart Define. "under cover thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/under_cover/thesaurus/synonyms>