ungratefulness
/ʌnˈɡreɪtfəlnəs/
noun
- The quality or state of not showing or feeling thanks for something received; lack of gratitude.
- His ungratefulness for all the help he received surprised everyone.
- The teacher was hurt by the students' ungratefulness for the extra tutoring sessions.
- She couldn't understand her friend's ungratefulness after the generous gift.
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