202 entries under adjective topic. ×

1
quiet(isolated, reclusive, uncompanionable)
1
secretive(unknowing, hermetical, unbriefed, conspiratorial)
1
sub-rosa(secret, fickle, untrustworthy, spy)
1
sub rosa(expression, adverb, show, underhanded)
1
under-the-table(unknowing, underhanded, recreant, privy)
1
unpublished
0
QT(isolated, unknowing, reclusive, underhanded)
0
alternative(experimental, subversive)
0
ambiguous(cover, obscure, dark, deep)
0
arcane(deep, unpublished)
0
artful(sly, fraudulent)
0
avant-garde(experimental, subversive)
0
backdoor(deep, unpublished)
0
backstairs(unknowing, taciturn, uncommunicative, hermetical)
0
buttoned up(expression, unknowing, taciturn, uncommunicative)
0
cagey(taciturn, uncommunicative)
0
calculating(secretive, conspiratorial)
0
camouflaged(underhanded, privy)
0
catlike
0
catty
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APASmart Define. (2015). under cover thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/under_cover/thesaurus/synonyms
ChicagoSmart Define. 2015. "under cover thesaurus" https://smartdefine.org/under_cover/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, under cover thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/under_cover/thesaurus/synonyms>.
MLASmart Define. "under cover thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/under_cover/thesaurus/synonyms>