| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | mysterious, unable to be solved or answered |
| Synonyms: | baffling, difficult, impenetrable, indecipherable, inexplicable, inextricable, irresolvable, mystifying, obscure, unaccountable, unconcluded, unfathomable, unresolved, unsolvable, unsolved |
| Antonyms: | explainable, explicable, obvious, open, solvable |