Antecedent may refer to:
Science Antecedent (behavioral psychology), the stimulus that occurs before a trained behavior Antecedent (genealogy), antonym of descendant, genealogical predecessor in family line Antecedent (logic), the first half of a hypothetical proposition Antecedent moisture, in hydrology, the relative wetness condition of a catchment
Language Antecedent (grammar), the previously occurring noun phrase to which a pro-form refers Generic antecedent, representatives of classes, referred to in ordinary language by another word
Other uses Antecedent (law), the history of a defendant Antecedent phrase, in music