168 entries under adjective topic. ×

1
not saying boo(expression, idiom, close, quiet)
1
obscure(quiet, plain, strange, imperceptible)
1
on the QT(expression, idiom, dishonest, deceitful)
1
plotting(mean, smooth, sly, devious)
1
quiescent(close, quiet, soft, low)
1
quieted(close, quiet, soft, low)
1
recessive(cool, cold, sensitive, shy)
1
reclusive(close, quiet, cool, gentle)
1
scheming(mean, smooth, corrupt, sly)
1
self-controlled
1
self-restrained
1
shrouded(unknowing, clandestine, underground, undisclosed)
1
slick(mean, smooth, sly)
1
slippery(dishonest, cunning, deceitful, sly)
1
smooth(mean, sly)
1
soft(close, quiet, low, peaceful)
1
soundless(close, quiet, soft, low)
1
speechless(close, quiet, soft, low)
1
still(close, quiet, soft, low)
1
stilled(close, quiet, soft, low)
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APASmart Define. (2015). secretive thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/secretive/thesaurus/synonyms
ChicagoSmart Define. 2015. "secretive thesaurus" https://smartdefine.org/secretive/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, secretive thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/secretive/thesaurus/synonyms>.
MLASmart Define. "secretive thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/secretive/thesaurus/synonyms>