1
undiagnosed
1
undisclosed
1
undiscoverable
1
undistinguished(strange, new, remote, indefinite, unidentified)
1
unheard
1
uninvented
1
unknowable
1
unnamed(adjective, strange, indefinite, unidentified)
1
unnoted(strange, new, remote, indefinite, unidentified)
1
unrecognized(strange, new, remote, mysterious, indefinite)
1
unrenowned(strange, new, remote, mysterious, indefinite)
1
unseen
1
unsolved
1
unspied
1
unsung(strange, new, remote, indefinite, unidentified)
1
unsuspected
1
untold(strange, new, remote, mysterious, indefinite)
1
untouched
1
untrodden
0
undivulged
11 years ago|2.1k views|share |citing 
APASmart Define. (2015). unexplored thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unexplored/thesaurus/synonyms
ChicagoSmart Define. 2015. "unexplored thesaurus" https://smartdefine.org/unexplored/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, unexplored thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unexplored/thesaurus/synonyms>.
MLASmart Define. "unexplored thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/unexplored/thesaurus/synonyms>