unmother verb 2noun 1forms 3 verb2 •To cause to cease being a mother; to kill or otherwise remove (a mother's) children.One day modi mother and unmothered. True twinnes in birth and death ; together drown in this sad stream. — 1640 •To cause to cease having a mother or to fail to mother properly. noun1 •A woman who is not a mother.How we lace away The hours interminable, Intricate and Pale, we nuns And all such unmothers of men — 1946 formsunmothered · unmothering · unmothers