unaccustomed

unaccustomed adjective a stranger to, aberrant, abnormal, amazing, anomalous, astonishing, bizarre, different, eccentric, exceptional, extraordinary, first time experiencing, first time for, freakish, green, ignorant, inexperienced, insuetus, inusitate, irregular, naive, new, new to, not accussomed to, not common, not conversant with, not familiar with, not in the habit of, not usual, not used to, novel, odd, out of the habit of, out of the ordinary, outlandish, peculiar, queer, rare, raw, remarkable, rusty, shaky, singular, strange, surprising, unacquainted, unacquainted with, unaware of, unconventional, unconversant, uncustomary, unfamiliar with, uninitiated, uninured, unique, unnatural, unordinary, unpracticed, unseasoned, unskilled, untrained, untried, unusual, unversed

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See also: extraordinary, inexperienced, nonconforming, peculiar, prodigious, special, unacquainted, uncommon, unusual