Entry 1 sense Webster, 1913 Unforeseeable /ŭnˌ-fôr-sē'-əb-əl/ · Un·fore·see·a·ble · IPA /ˌʌnfɔrsˈiːəbəl/ 01 a. Incapable of being foreseen. 1. Incapable of being foreseen.