147 entries under unknown topic. ×

9
uncelebrated(adjective, strange, indefinite, unidentified)
9
undistinguished(adjective, dull, mean, lower, poor)
7
inexact(adjective, weak, rough, dark, dim)
7
inglorious(adjective, mean, simple, lower, poor)
7
isolated(adjective, quiet, near, distant, remote)
7
minor(adjective, lower, inferior, humble)
7
unheard-of(adjective, knowledge, strange, unfamiliar)
7
unnoticed(adjective, disrepute)
7
unseen(adjective, dark, secret, hidden)
6
indiscernible(adjective, solid, dark, dense)
6
latent(adjective, dark, secret, hidden)
6
loose(adjective, hard, rough, delicate, complex)
6
lowly(adjective, mean, simple, lower, poor)
6
rare(adjective, dark, superior, mysterious)
6
strange(adjective, new, indefinite, clandestine)
4
close(verb, adjective, cover, check, block)
4
ulterior(adjective, cover, secret, hidden)
4
unspecified(adjective, rough, strange, vague, mysterious)
4
buried(cover, dark, secret, hidden)
4
general(adjective, rough, vague, unclear)
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APASmart Define. (2016). obscure thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/obscure/thesaurus/synonyms
ChicagoSmart Define. 2016. "obscure thesaurus" https://smartdefine.org/obscure/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, obscure thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/obscure/thesaurus/synonyms>.
MLASmart Define. "obscure thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/obscure/thesaurus/synonyms>