| far-out(adjective, extraordinary, unusual, strange, exceptional) |
| infrequent(adjective, unusual, special, rare, scarce) |
| kinky |
| oddball(adjective, odd, bizarre, outlandish, nonconforming) |
| off(adjective, odd, bizarre, outlandish, nonconforming) |
| raw(adjective, new, kindly, innocent, ignorant) |
| unaccustomed to |
| unacquainted with |
| unapprehended(strange, new, remote, mysterious, indefinite) |
| unconscious(adjective, knowledge, unconcerned, ignorant, heedless) |
| unconversant(adjective, new, raw, inept, inexperienced) |
| unheard of(verb, expression, phrasal verb, strange, special) |
| unrevealed(strange, new, remote, mysterious, secret) |
| unsung(adjective, obscure, strange, unknown, indefinite) |
| untypical(adjective, nonconforming) |
| arcane(unusual, special, rare) |
| au courant(expression, adjective, unusual, strange, fresh) |
| blind(adjective, unconcerned, ignorant, unconscious, heedless) |
| deaf to(expression, adjective, unconcerned, ignorant, unconscious) |
| deranged(adjective, nonconforming) |