idiosyncratic
  (a.)特質的,異質的,特殊的
  id·io·syn·crat·ic /ˌɪdɪo(ˌ)sɪnˈkrætɪk/ 形容詞
  特(異反)應性的,特異體質的
  Id·i·o·syn·crat·ic Id·i·o·syn·crat·ic·al a. Of peculiar temper or disposition; belonging to one's peculiar and individual character.
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  idiosyncratic
       adj : peculiar to the individual; "we all have our own
             idiosyncratic gestures"; "Michelangelo's highly
             idiosyncratic style of painting"