Synonyms|540Antonyms|121|Broader|7Narrower|4Related|1.1k

78 entries under unknown topic. ×

1
unexposed(obscure, dark, secret, hidden)
1
unknowable(strange, deep, spiritual, curious)
1
unnatural(strange, curious, concealed, inexplicable)
1
unrevealed(obscure, dark, deep, mysterious)
1
unseen(obscure, dark, secret, hidden)
1
weird(obscure, strange, deep, mysterious)
1
withheld(obscure, dark, secret, hidden)
0
backdoor(obscure, clandestine, underground, undisclosed)
0
camouflaged(obscure, clandestine, underground, undisclosed)
0
classified(obscure, clandestine, underground, undisclosed)
0
cloak-and-dagger(obscure, clandestine, underground, undisclosed)
0
cloak and dagger(expression, idiom, obscure, unrevealed)
0
closet(obscure, clandestine, underground, undisclosed)
0
conspiratorial(obscure, clandestine, underground, undisclosed)
0
on the QT(expression, idiom, obscure, clandestine)
0
unenlightened(obscure, clandestine, underground, undisclosed)
0
unfrequented(obscure, clandestine, underground, undisclosed)
0
unpublished(obscure, clandestine, underground, undisclosed)
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APASmart Define. (2015). abstruse thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/abstruse/thesaurus/synonyms
ChicagoSmart Define. 2015. "abstruse thesaurus" https://smartdefine.org/abstruse/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, abstruse thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/abstruse/thesaurus/synonyms>.
MLASmart Define. "abstruse thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/abstruse/thesaurus/synonyms>