" unaccustomed "

1: not having acquired a habit or tolerance;

  * e.g., " ... pampered youngsters who were unaccustomed to such hard work "

•  Synonyms : 

•  unacclimated,

•  unadapted,

•  unadjusted,

•  unused

•  Antonyms : 

•  acclimated,

•  accustomed,

•  adapted,

•  adjusted,

•  habituated,

•  used

2: not known or experienced before;

  * e.g., " ... the unaccustomed friendliness of my relatives after I won the lottery "

•  Synonyms : 

•  fresh,

•  new,

•  novel,

•  original,

•  strange,

•  unfamiliar,

•  unheard-of,

•  unknown,

•  unprecedented

•  Antonyms : 

•  familiar,

•  hackneyed,

•  old,

•  time-honored,

•  tired,

•  warmed-over

3: noticeably different from what is generally found or experienced;

  * e.g., " ... unaccustomed styles of cooking that the tourists had to be persuaded to try "

•  Synonyms : 

•  curious,

•  extraordinary,

•  funny,

•  odd,

•  offbeat,

•  out-of-the-way,

•  peculiar,

•  queer,

•  rare,

•  singular,

•  strange,

•  uncommon,

•  uncustomary,

•  unique,

•  unusual,

•  weird

•  Antonyms : 

•  common,

•  ordinary,

•  plain,

•  usual