| unique(noun, adjective, feature, unusual, new) |
| peerless(adjective, superior, unique, same) |
| unparalleled(noun, adjective, new, superlative, unique) |
| matchless(adjective, unique, same, unequalled) |
| incomparable(adjective, superlative, unique, same) |
| unrivalled |
| unrivaled(noun, adjective, new, superb, exceptional) |
| inimitable(adjective, incomparable, nonimitation) |
| odd(adjective, mixed, extraordinary, distant, uneven) |
| unequalled(noun, adjective, new, unique, incomparable) |
| nonpareil(adjective, unique, same) |
| supreme(adjective, excellent, superb, exceptional, marvelous) |
| unsurpassed(adjective, supreme) |
| different(adjective, exceptional, distant, odd, different) |
| one |
| unequal(adjective, difference, different, uneven, unbalanced) |
| unequaled(adjective, unique, same) |
| unlike(adjective, distant, odd, different, uneven) |
| unexampled(adjective, perfect, single, unique, same) |
| unmatchable |