(anādi); 'beginningless.' Refers to a situation where no matter how far back (in time) one goes, a beginning point cannot be found.

Without beginning, as is the chain of transmigration.

A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous

１．無有元始。諸法皆由因緣生，因上有因，因因無始，如是展轉推究，一切眾生及諸法之原始，皆不可得，故云無始。２．指距今極遠的時間。

陳義孝編, 竺摩法師鑑定, 《佛學常見辭彙》

anādi-kālika, anādika, anādikamat, anādi-kāla, anāditva.

佛教漢梵大辭典

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