'anti-biblical' originates from Greek and Medieval/Church Latin elements: the prefix 'anti-' (Greek 'anti') meaning 'against', and 'biblical' from Latin/Greek 'biblia' meaning 'books' (referring to the Bible).

'biblical' changed from Medieval Latin word 'biblia' (from Greek 'biblion'/'biblia', plural of 'biblion'), passed into Old French and Middle English as 'bible' and gave rise to the adjective 'biblical'; the compound 'anti-biblical' was formed by adding the Greek prefix 'anti-'.

Initially it literally meant 'against the Bible' and over time has been used in contexts to describe ideas, statements, actions, or attitudes that are contrary to biblical teaching or authority; the core sense 'opposed to the Bible' has been largely retained.