582 entries under adjective topic. ×

15
nebulous(dull, clear, rough, dark)
15
occult(noun, verb, cover, block)
14
confused(dull, flat, difficult, dark)
14
impenetrable(dark, sophisticated, mysterious, complicated)
14
secret(quiet, dark, superior, strange)
14
shady(dull, dark, gloomy, uncertain)
14
somber(dull, soft, flat, sad)
14
unfathomable(hard, difficult, solid, dark)
14
veiled(dull, dark, dim, secret)
13
indeterminate(rough, uncertain, doubtful, unsettled)
13
indistinguishable(vague, unknown, unclear, hazy)
13
unsung(strange, unknown, unfamiliar, indefinite)
12
unintelligible(hard, rough, difficult, solid)
12
ill-defined(weak, rough, dark, uncertain)
12
inscrutable(dark, strange, sophisticated, mysterious)
12
remote(quiet, cover, weak, dark)
12
tenebrous(dull, rough, difficult, dark)
11
blind(verb, dull, close, cover)
11
complex(hard, difficult, delicate, heavy)
11
equivocal(cover, clear, rough, difficult)
10 years ago|59k views|share |citing 
APASmart Define. (2016). obscure thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/obscure/thesaurus/synonyms
ChicagoSmart Define. 2016. "obscure thesaurus" https://smartdefine.org/obscure/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, obscure thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/obscure/thesaurus/synonyms>.
MLASmart Define. "obscure thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/obscure/thesaurus/synonyms>