| inconceivable(adjective, great, extraordinary, unusual, strange) |
| rare(adjective, extraordinary, unusual, strange, exceptional) |
| singular(adjective, extraordinary, unusual, strange, superb) |
| unheard-of(adjective, unusual, strange, superb, exceptional) |
| abnormal(adjective, extraordinary, unusual, strange, wonderful) |
| atypical(adjective, unusual, strange, wonderful, exceptional) |
| bizarre(adjective, unusual, strange, wonderful, exceptional) |
| curious(adjective, extraordinary, unusual, strange, wonderful) |
| mystifying(bizarre, outlandish) |
| out of the ordinary(expression, adjective, idiom, extraordinary, unusual) |
| outlandish(extraordinary, marvelous, fantastic, amazing) |
| perplexing(adjective, bizarre, outlandish) |
| queer(adjective, extraordinary, unusual, wonderful, exceptional) |
| special(adjective, extraordinary, unusual, strange, exceptional) |
| unaccountable(adjective, extraordinary, strange, marvelous, amazing) |
| uncanny(adjective, unusual, strange, bizarre) |
| unfamiliar(adjective, extraordinary, unusual, strange, exceptional) |
| unwonted(adjective, extraordinary, unusual, strange, exceptional) |
| weird(adjective, extraordinary, unusual, strange, wonderful) |
| wicked(adjective, excellent, extraordinary, unusual, strange) |