| philosophical(adjective, abstract, theoretical, abstruse) |
| profound(adjective, abstract, theoretical, abstruse, philosophical) |
| psychic(adjective, obscure, dark, mysterious, supernatural) |
| psychical |
| rare(adjective, obscure, dark, superior, mysterious) |
| recondite(adjective, abstract, theoretical, abstruse, philosophical) |
| secret(adjective, obscure, dark, superior, mysterious) |
| spectral(adjective, obscure, dark, superior, supernatural) |
| superordinary(adjective, obscure, dark, superior, supernatural) |
| supersensible(adjective, obscure, dark, superior, supernatural) |
| suprahuman(adjective, abstract, theoretical, abstruse, philosophical) |
| supramundane(adjective, abstract, theoretical, abstruse, philosophical) |
| surprisingly wonderful |
| theoretical(adjective, abstract, abstruse, philosophical) |
| uncanny(adjective, obscure, dark, superior, mysterious) |
| uncomprehensible(adjective, obscure, dark, superior, mysterious) |
| unfathomable(adjective, obscure, dark, superior, mysterious) |
| unfleshly(adjective, abstract, theoretical, abstruse, philosophical) |
| unhuman |
| unintelligible(adjective, obscure, dark, superior, mysterious) |