[f. as prec. + -NESS.] The quality or condition of being thankless; ungratefulness, unthankfulness.
1583. Golding, Calvin on Deut. vii. 41. Were it not too shamefull a thankelesnesse in vs if wee shoulde not bee [etc.].
1628. Wither, Brit. Rememb., IV. 404. Thy thanklesnesse, And such like Sinnes.
1840. L. Hunt, Legend of Florence, I. ii. Friendship ends, In treachery and in thanklessness begun.
1860. Pusey, Min. Proph., 273. Thanklessness shuts the door to God’s personal mercies to us.
