10 entries under microscopic topic. ×

10
concealed(adjective, obscure, dark, secret, imperceptible)
8
covert(adjective, obscure, dark, hidden, imperceptible)
5
ulterior(adjective, cover, obscure, secret, imperceptible)
2
occult(obscure, dark, unknown, hidden, imperceptible)
2
unseen(obscure, dark, unknown, hidden, imperceptible)
1
disguised(obscure, unknown, hidden, imperceptible, concealed)
1
indiscernible(obscure, dark, unknown, hidden, imperceptible)
1
obscured(cover, obscure, dark, equivocal, imperceptible)
1
screened(obscure, dark, unknown, hidden, imperceptible)
1
veiled(obscure, unknown, hidden, imperceptible, concealed)
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APASmart Define. (2015). undisclosed thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/undisclosed/thesaurus/synonyms
ChicagoSmart Define. 2015. "undisclosed thesaurus" https://smartdefine.org/undisclosed/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, undisclosed thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/undisclosed/thesaurus/synonyms>.
MLASmart Define. "undisclosed thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/undisclosed/thesaurus/synonyms>