徹頭徹尾 [ㄔㄜˋ ㄊㄡˊ ㄔㄜˋ ㄨㄟˇ; che4 tou2 che4 wei3]
  lit. from head to tail (idiom); thoroughgoing
  through and through
  out and out
  from top to bottom
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  徹頭徹尾
  撤頭徹尾
  word containing irregular kanji usage
  てっとうてつび
  adverb (fukushi)
  thoroughly
  through and through
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