Added 9 October 2026 thankfulness noun Categories: FeelingsRare Words In Latin: gratia Wiktionary noun ! Definition from WordNet 3.1, Princeton University. More about thankfulness at Wordnik → Where our words come from → Warm friendly feelings of gratitude. Origin From thankful + -ness. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: gratefulnessappreciativenessgratitudeunthankfulnessthankworthinessungratefulnessgladfulnessgraciousnesskindnessdanknessregretfulnessbeholdenness Back to today's word