内道 ないどう Meanings Noun Buddhist teachings; Buddhist Antonym: 外道 (げどう). Kanji 内 inside. Read as ナイ. 道 road. Read as ドウ. Words containing 内道 内道場 (ないどうじょう) inner practice hall (for Buddhism; on the imperial palace grounds) Word lists Buddhism Jinuma: Japanese Dictionary · Word lists