Entry 1 sense Webster, 1913 Inseparably · In·sep·a·ra·bly · IPA /ˌɪnsˈɛpərəbliː/ 01 adv. In an inseparable manner or condition; so as not to be separable. 1. In an inseparable manner or condition; so as not to be separable. “And cleaves through life inseparably close.” — Cowper.