| specialized(adjective, separate, superior, unusual, strange) |
| spooky |
| stupendous |
| suspicious(adjective, unusual, strange, doubtful, dubious) |
| unalloyed(adjective, separate, simple, special, individual) |
| unblended(adjective, separate, simple, special, individual) |
| unclassifiable(adjective, unusual) |
| uncommonly(adverb, little, really, hardly, particularly) |
| uncompounded(adjective, separate, simple, special, individual) |
| undivided(adjective, separate, simple, special, individual) |
| unfrequent |
| unitary(adjective, separate, simple, unusual, strange) |
| unmixed(adjective, separate, simple, special, individual) |
| unrepresentative |
| unrivaled(adjective, separate, simple, exceptional, special) |
| unshared(adjective, separate, simple, special, individual) |
| unusually(adverb, little, really, hardly, particularly) |
| whimsical(adjective, extraordinary, unusual, wild, strange) |
| without equal(expression, adjective, separate, simple, special) |
| above average(expression, adjective, idiom, exceptional, amazing) |