Entry 2 senses · 2 variants Webster, 1913 Coeval · Co·e·val · IPA /koʊˈi.vəl/ a. n. 01 a. Of the same age; existing during the same period of time, especially time long and remote; -- usually followed by with. 1. Of the same age; existing during the same period of time, especially time long and remote; -- usually followed by with. “Silence! coeval with eternity!” — Pope. “Oaks coeval spread a mournful shade.” — Cowper. 02 n. One of the same age; a contemporary. 1. One of the same age; a contemporary. “As if it were not enough to have outdone all your coevals in wit.” — Pope.