21
inexplicable(adjective, obscure, strange, explain, explanation)
14
unaccountable(adjective, obscure, difficult, strange, explain)
13
mysterious(adjective, unfathomable, enigmatic, inexplicable, unaccountable)
12
incomprehensible(adjective, obscure, strange, odd, mysterious)
12
inscrutable(adjective, strange, blank, hidden, unfathomable)
7
strange(adjective, unfathomable, inexplicable, puzzling, unaccountable)
6
unintelligible(adjective, obscure, strange, odd, hidden)
5
impenetrable(adjective, strange, hidden, unfathomable, incomprehensible)
5
unfathomable(adjective, obscure, strange, odd, mysterious)
4
baffling(adjective, strange, unfathomable, inexplicable, puzzling)
4
puzzling(adjective, strange, unfathomable, inexplicable)
4
enigmatic(adjective, obscure, strange, odd, mysterious)
4
odd(adjective, informal, strange, unfathomable, inexplicable)
4
peculiar(adjective, strange, unfathomable, inexplicable, puzzling)
4
supernatural
3
miraculous
3
mystic(adjective, difficult, strange, hidden, unfathomable)
3
mystical
3
mystifying(adjective, inexplicable)
3
occult
11 years ago|3.7k views|share |citing 
APASmart Define. (2015). unexplainable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/unexplainable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unexplainable thesaurus" https://smartdefine.org/unexplainable/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, unexplainable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/unexplainable/thesaurus/synonyms>.
MLASmart Define. "unexplainable thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/unexplainable/thesaurus/synonyms>