unessential
Gegenteile:
essential, all-important, crucial, important, vital, imperative, pressing, urgent, indispensable, necessary, needed, needful, required, basal, biogenic, constituent, constitutional, constitutive, critical, integral, life-sustaining, must, must-have, necessitous, no-frills, organic, primary, requisite, staple, substantial, substantive, virtual,