ungratitude

noun

1. the quality or feeling of being grateful or thankful: He expressed his gratitude to everyone on the staff.

noun

1. a feeling of thankfulness or appreciation, as for gifts or favours

n.mid-15c., “good will,” from Middle French gratitude (15c.) or directly from Medieval Latin gratitudinem (nominative gratitudo) “thankfulness,” from Latin gratus “thankful, pleasing” (see grace). Meaning “thankfulness” is from 1560s.