Entry 1 sense Webster, 1913 Astraddle /əs-trăd'-əl/ · A·strad·dle · IPA /əˈstɹædəl/ 01 adv. In a straddling position; astride; bestriding; as, to sit astraddle a horse. 1. In a straddling position; astride; bestriding; as, to sit astraddle a horse.