10 entries under imperceptible topic. ×

10
concealed(adjective, obscure, dark, secret)
8
covert(adjective, obscure, dark, hidden)
5
ulterior(adjective, cover, obscure, secret)
2
occult(obscure, dark, unknown, hidden)
2
unseen(obscure, dark, unknown, hidden)
1
disguised(obscure, unknown, hidden, concealed)
1
indiscernible(obscure, dark, unknown, hidden)
1
obscured(cover, obscure, dark, equivocal)
1
screened(obscure, dark, unknown, hidden)
1
veiled(obscure, unknown, hidden, concealed)
11 years ago|5.2k views|share |citing 
APASmart Define. (2015). undisclosed thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/undisclosed/thesaurus/synonyms
ChicagoSmart Define. 2015. "undisclosed thesaurus" https://smartdefine.org/undisclosed/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, undisclosed thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/undisclosed/thesaurus/synonyms>.
MLASmart Define. "undisclosed thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/undisclosed/thesaurus/synonyms>