1 technical nearer the front, especially in the front of the body, or nearer to the head or forepart:the veins anterior to the heartThe opposite of posterior. Botany (of a part of a flower or leaf) situated further away from the main stem. Phonetics pronounced with an obstruction located in front of the palato-alveolar region of the mouth, e.g. b, p, d, t.
2 formal coming before in time; earlier:an incident anterior to her troubles