| inexplicable(adjective, obscure, solid, extraordinary, superior) |
| strange(adjective, extraordinary, marvelous, amazing, odd) |
| incomprehensible(adjective, obscure, solid, strange, doubtful) |
| unexplainable(adjective, obscure, difficult, strange, explain) |
| irresponsible(adjective, careless, foolish, reckless, negligent) |
| inscrutable(adjective, solid, strange, blank, dense) |
| mysterious(adjective, obscure, solid, superior, marvelous) |
| odd(adjective, strange, supernatural, bizarre, unconformity) |
| unintelligible(adjective, obscure, solid, strange, doubtful) |
| impenetrable(adjective, obscure, solid, strange, doubtful) |
| bizarre(adjective, odd, supernatural, unconformity, unnatural) |
| peculiar(adjective, strange, odd, bizarre, unnatural) |
| unusual(adjective, strange, odd, bizarre, unconformity) |
| extraordinary(adjective, superior, strange, marvelous, amazing) |
| undependable(adjective, careless, immoral, thoughtless, reckless) |
| unfathomable(adjective, obscure, solid, strange, doubtful) |
| puzzling(adjective, strange, unfathomable, perplexing, bewildering) |
| uncommon(adjective, unusual, strange, odd, bizarre) |
| unnatural(adjective, regular, supernatural, artificial, uncanny) |
| weird(adjective, odd, supernatural, bizarre, unnatural) |