徹頭徹尾 てっとうてつび Meanings Adverb thoroughly; through and through; out and out; in every way; from beginning to end; from start to finish Kanji 徹 thorough. Read as テツ. 頭 head. Read as トウ. 尾 tail. Read as ビ. Example sentences 私は徹頭徹尾あなたを支持してきました。I have supported you throughout. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists