開闢以来 かいびゃくいらい Meanings Noun, Adverb since the beginning of the world; since the dawn of history Kanji 開 open. Read as カイ. 闢 open. Read as ビャク. 以 from 来 come. Read as ライ. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists