In-grăt/i-tūde, n.

(53), n. [Prefix ĭn, not, and grati-tude; Fr. ingratitude, Pr. ingratitut, Sp. ingratitud, It. ingratitudine, Lat. ingratitudo.] Want of gratitude or sentiments of kindness for favors received; insensibility to favors, and want of a disposition to repay them; unthankfulness.

Ingratitude is abhorred by God and man. L’Estrange.