n. [ F. ingratitude, L. ingratitudo. See Ingrate. ] Lack of gratitude; insensibility to, forgetfulness of, or ill return for, kindness or favors received; unthankfulness; ungratefulness. [ 1913 Webster ]
Ingratitude, thou marble-hearted fiend. Shak. [ 1913 Webster ]
Ingratitude is abhorred both by God and man. L'Estrange. [ 1913 Webster ]