2
clouded(obscure, dark, anxious, worried, troubled)
2
covered(obscure, secret, hidden, concealed, unseen)
2
cryptic(obscure, dark, strange, secret, hidden)
2
curious(adjective, strange, new, concealed, untried)
2
desolate(adjective, obscure, strange, mysterious, indefinite)
2
disguised(adjective, obscure, secret, hidden, underground)
2
eclipsed(obscure, dark, secret, hidden, concealed)
2
enigmatic(strange, unclear, indistinct, indistinguishable, inexplicable)
2
exceptional(adjective, obscure, unusual, strange, new)
2
extraordinary(adjective, obscure, strange, new, different)
2
extraterrestrial
2
fantastic(adjective, new, untried)
2
frontier
2
furtive(obscure, strange, clandestine, underground, curious)
2
ignorant(adjective, uninformed, oblivious)
2
incomprehensible
2
indeterminable(adjective, vague, general, unclear, ambiguous)
2
inscrutable
2
isolated(adjective, obscure, new, mysterious, unfamiliar)
2
late(adjective, unusual, cold, strange, fresh)
11 years ago|26k views|share |citing 
APASmart Define. (2015). unknown thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unknown/thesaurus/synonyms
ChicagoSmart Define. 2015. "unknown thesaurus" https://smartdefine.org/unknown/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, unknown thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unknown/thesaurus/synonyms>.
MLASmart Define. "unknown thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/unknown/thesaurus/synonyms>