1
unheard
1
unidentified
1
uninvestigated
1
unknowing
1
unlikely(adjective, extraordinary, strange, unbelievable, implausible)
1
unnatural(adjective, obscure, dark, superior, strange)
1
unperceived
1
unplumbed
1
unreadable(adjective, ambiguous, incoherent, unfathomable, incomprehensible)
1
unsearchable
1
unsubstantial(adjective, extraordinary, strange, unbelievable, implausible)
1
unsuspected
1
unthinkable(adjective, extraordinary, strange, unbelievable, implausible)
1
untouched
1
unusual(adjective, obscure, dark, superior, strange)
1
veiled(adjective, strange, unknown, curious, concealed)
1
visionary(adjective, supernatural, imaginary, spiritual, mystical)
1
weak(adjective, extraordinary, strange, unbelievable, implausible)
1
weird(adjective, strange, unknown, curious, concealed)
0
allegorical
11 years ago|7k views|share |citing 
APASmart Define. (2015). unknowable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unknowable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unknowable thesaurus" https://smartdefine.org/unknowable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, unknowable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unknowable/thesaurus/synonyms>.
MLASmart Define. "unknowable thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/unknowable/thesaurus/synonyms>