Ingratitude
Pronunciation : In*grat"i*tude
Part of Speech : n.
Etymology : [F. ingratitude, L. ingratitudo. See Ingrate.]
Definition : Defn: Want of gratitude; insensibility to, forgetfulness of, or ill return for, kindness or favors received; unthankfulness; ungratefulness. Ingratitude, thou marble-hearted fiend. Shak. Ingratitude is abhorred both by God and man. L'Estrange.
Source : Webster's Unabridged Dictionary, 1913