hypergargantuan /ˈhaɪ.pə(ɹ)ɡɑɹˈɡæn.t͡ʃu.ən/ adjective1 •(rare) Exceedingly gargantuan; supergargantuan.A hypergargantuan segment of conpull* capable of binding the moon in place to the earth. Just in case. — 2007 formsmore hypergargantuan · most hypergargantuan