| anonymous(adjective, indefinite, unidentified) |
| capricious(adjective, extraordinary, unusual, wild, crazy) |
| deviate(adjective, exceptional, irregular, nonstandard, uncharacteristic) |
| doubtful(adjective, unusual, fantastic, dubious, unexpected) |
| dubious(adjective, unusual, fantastic, irregular, doubtful) |
| far-fetched(adjective, hard, experience, marvelous, distant) |
| foreign-born(adjective, extraneous) |
| improbable(adjective, extraordinary, fantastic, doubtful, dubious) |
| independent |
| infrequent(adjective, excellent, extraordinary, unusual, exceptional) |
| insane(adjective, wild, silly, foolish, crazy) |
| irrational(unusual, silly, foolish, ridiculous, unwise) |
| irrelative |
| mystifying(adjective, odd, unfamiliar, bizarre, outlandish) |
| newfangled(adjective, unusual, new, fresh, original) |
| overseas(experience, distant, different, unfamiliar, external) |
| perplexing(adjective, odd, unfamiliar, bizarre, outlandish) |
| perverse |
| private(adjective, separate, simple, obscure, special) |
| rummy(adjective, eccentric) |