ingratitude

Lack of gratitude; ungratefulness.

Lack of gratitude; indisposition to acknowledge or reciprocate favors; a state of unthankfulness for benefits conferred.

Synonyms See grateful.

Lack of gratitude; insensibility to, forgetfulness of, or ill return for, kindness or favors received; unthankfulness; ungratefulness.

A lack or absence of gratitude; thanklessness.