noun, feminine/fɾuɡaliˈdad/
frugalidad is feminine in Spanish.
frugality
“Dejando esas tonterías aparte, viendo esta mansión me entran sospechas acerca de la frugalidad legendaria de nuestra poeta.” — That nonsense aside, seeing this mansion makes me suspicious of the legendary frugality of our poet.
From Latin frūgālitātem.