134 entries under unclear topic. ×

13
indistinguishable(adjective, vague, unknown, hazy)
12
unintelligible(adjective, hard, rough, difficult, solid)
12
ill-defined(adjective, weak, rough, dark, uncertain)
12
tenebrous(adjective, dull, rough, difficult, dark)
11
equivocal(adjective, cover, clear, rough, difficult)
11
intricate(adjective, hard, difficult, heavy, complex)
11
perplexing(adjective, hard, rough, difficult, dark)
11
undefined(adjective, rough, uncertain, doubtful, dim)
10
difficult(adjective, hard, strange, uncertain, complex)
10
dismal(adjective, dark, sadness, gloom)
10
dubious(adjective, rough, uncertain, unreasonable, doubtful)
10
uncertain(adjective, clear, rough, difficult, dark)
9
amorphous(adjective, rough, chaotic, indistinct)
9
baffling(adjective, hard, difficult, solid, strange)
9
confusing(adjective, hard, uncertain, vague)
9
formless(adjective, vague, chaotic, indistinct)
9
imprecise(adjective, rough, vague, unknown)
9
involved(adjective, hard, difficult, complex, sophisticated)
8
complicated(adjective, hard, difficult, complex, sophisticated)
7
inexact(adjective, weak, rough, dark, dim)
10 years ago|59k views|share |citing 
APASmart Define. (2016). obscure thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/obscure/thesaurus/synonyms
ChicagoSmart Define. 2016. "obscure thesaurus" https://smartdefine.org/obscure/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, obscure thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/obscure/thesaurus/synonyms>.
MLASmart Define. "obscure thesaurus" 29 March 2016. Web. 30 September 2026. <https://smartdefine.org/obscure/thesaurus/synonyms>