120 entries under obscure topic. ×

2
far-off(strange, new, remote, mysterious)
2
heavy(complex, deep, thoughtful, reflective)
2
hermetic(close, quiet, complex, deep)
2
impenetrable(adjective, dark, superior, strange)
2
inaccessible(remote, faraway, far-off)
2
supernatural(adjective, dark, strange, odd)
2
unintelligible(adjective, dark, superior, uncertain)
2
unknowable(adjective, dark, superior, strange)
1
Delphian(adjective, evil, dark, uncertain)
1
abnormal(dark, superior, mysterious, supernatural)
1
abroad(remote, faraway, far-off)
1
abstracted(remote, faraway, far-off)
1
apart(remote, faraway, far-off)
1
asunder(remote, faraway, far-off)
1
away(remote, faraway, far-off)
1
backwoods(remote, faraway, far-off)
1
beyond range(expression, remote, faraway, far-off)
1
celestial(dark, superior, mysterious, supernatural)
1
difficult(adjective, hard, dark, heavy)
1
fairy(dark, superior, mysterious, supernatural)
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APASmart Define. (2016). secret thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/secret/thesaurus/synonyms
ChicagoSmart Define. 2016. "secret thesaurus" https://smartdefine.org/secret/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, secret thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/secret/thesaurus/synonyms>.
MLASmart Define. "secret thesaurus" 31 March 2016. Web. 29 September 2026. <https://smartdefine.org/secret/thesaurus/synonyms>