a.
1.
Foreign, outlandish, exotic, alien.
2.
New, novel.
3.
Unusual, uncommon, irregular, odd, singular, peculiar, particular, exceptional, rare, extraordinary, curious.
4.
Unnatural, abnormal, anomalous, extraordinary, wonderful, inexplicable, marvellous, preternatural, unaccountable, mysterious, unique, unheard of, out of the way.
5.
Odd, eccentric, queer, peculiar, bizarre .
6.
Unacquainted, unknown, unfamiliar.