Synonyms and related words :
a stranger to, abnormal, atypical, breakaway, disaccustomed, extraordinary, ignorant, inexperienced, infrequent, irregular, new to, odd, offbeat, peculiar, rare, recherche, rusty, singular, strange, sui generis, unaccustomed, unacquainted with, uncommon, unconventional, unconversant with, uncustomary, undreamed-of, unexpected, unfamiliar, unfamiliar with, unhabituated, unhardened, unheard-of, unimaginable, uninured, unique, unordinary, unorthodox, unpracticed, unprecedented, unseasoned, unthinkable, unthought-of, untrained, unused, unused to, unusual, weaned