Relating to or characteristic of what comes before; of or pertaining to an antecedent.
From 'antecedent' + '-al' adjective suffix. This rare adjective form emphasizes the quality of preceding or being antecedent in nature.
This word is so obscure that even most English dictionaries skip it, but it shows how productive English morphology is—you can almost always add '-al' to make an adjective!
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